OMAPDSS: DPI: Use DPI driver data
DPI related data is currently a static global struct parameter. It is accessed directly by functions in the driver. This method won't work if we want the driver to support multiple DPI instances. Create struct dpi_data, and pass its pointer to functions which need to use it. We still have a static instance defined for dpi_data, which is accessed by top level DPI ops. This will be removed when the driver dynamically allocates dpi_data for each DPI instance. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Archit Taneja
Tomi Valkeinen
Родитель
0df1f2487d
Коммит
630d2d0de6
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@ -37,7 +37,7 @@
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#include "dss.h"
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#include "dss_features.h"
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static struct {
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struct dpi_data {
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struct platform_device *pdev;
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struct regulator *vdds_dsi_reg;
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@ -52,7 +52,9 @@ static struct {
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struct omap_dss_device output;
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bool port_initialized;
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} dpi;
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};
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static struct dpi_data dpi_data;
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static struct platform_device *dpi_get_dsidev(enum omap_channel channel)
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{
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@ -200,15 +202,16 @@ static bool dpi_calc_dss_cb(unsigned long fck, void *data)
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dpi_calc_dispc_cb, ctx);
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}
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static bool dpi_dsi_clk_calc(unsigned long pck, struct dpi_clk_calc_ctx *ctx)
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static bool dpi_dsi_clk_calc(struct dpi_data *dpi, unsigned long pck,
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struct dpi_clk_calc_ctx *ctx)
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{
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unsigned long clkin;
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unsigned long pll_min, pll_max;
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clkin = dsi_get_pll_clkin(dpi.dsidev);
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clkin = dsi_get_pll_clkin(dpi->dsidev);
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memset(ctx, 0, sizeof(*ctx));
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ctx->dsidev = dpi.dsidev;
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ctx->dsidev = dpi->dsidev;
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ctx->pck_min = pck - 1000;
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ctx->pck_max = pck + 1000;
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ctx->dsi_cinfo.clkin = clkin;
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@ -216,7 +219,7 @@ static bool dpi_dsi_clk_calc(unsigned long pck, struct dpi_clk_calc_ctx *ctx)
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pll_min = 0;
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pll_max = 0;
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return dsi_pll_calc(dpi.dsidev, clkin,
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return dsi_pll_calc(dpi->dsidev, clkin,
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pll_min, pll_max,
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dpi_calc_pll_cb, ctx);
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}
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@ -252,7 +255,7 @@ static bool dpi_dss_clk_calc(unsigned long pck, struct dpi_clk_calc_ctx *ctx)
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static int dpi_set_dsi_clk(enum omap_channel channel,
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static int dpi_set_dsi_clk(struct dpi_data *dpi, enum omap_channel channel,
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unsigned long pck_req, unsigned long *fck, int *lck_div,
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int *pck_div)
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{
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@ -260,18 +263,18 @@ static int dpi_set_dsi_clk(enum omap_channel channel,
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int r;
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bool ok;
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ok = dpi_dsi_clk_calc(pck_req, &ctx);
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ok = dpi_dsi_clk_calc(dpi, pck_req, &ctx);
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if (!ok)
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return -EINVAL;
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r = dsi_pll_set_clock_div(dpi.dsidev, &ctx.dsi_cinfo);
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r = dsi_pll_set_clock_div(dpi->dsidev, &ctx.dsi_cinfo);
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if (r)
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return r;
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dss_select_lcd_clk_source(channel,
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dpi_get_alt_clk_src(channel));
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dpi.mgr_config.clock_info = ctx.dispc_cinfo;
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dpi->mgr_config.clock_info = ctx.dispc_cinfo;
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*fck = ctx.dsi_cinfo.dsi_pll_hsdiv_dispc_clk;
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*lck_div = ctx.dispc_cinfo.lck_div;
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@ -280,8 +283,8 @@ static int dpi_set_dsi_clk(enum omap_channel channel,
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return 0;
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}
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static int dpi_set_dispc_clk(unsigned long pck_req, unsigned long *fck,
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int *lck_div, int *pck_div)
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static int dpi_set_dispc_clk(struct dpi_data *dpi, unsigned long pck_req,
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unsigned long *fck, int *lck_div, int *pck_div)
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{
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struct dpi_clk_calc_ctx ctx;
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int r;
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@ -295,7 +298,7 @@ static int dpi_set_dispc_clk(unsigned long pck_req, unsigned long *fck,
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if (r)
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return r;
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dpi.mgr_config.clock_info = ctx.dispc_cinfo;
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dpi->mgr_config.clock_info = ctx.dispc_cinfo;
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*fck = ctx.fck;
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*lck_div = ctx.dispc_cinfo.lck_div;
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@ -304,19 +307,21 @@ static int dpi_set_dispc_clk(unsigned long pck_req, unsigned long *fck,
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return 0;
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}
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static int dpi_set_mode(struct omap_overlay_manager *mgr)
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static int dpi_set_mode(struct dpi_data *dpi)
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{
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struct omap_video_timings *t = &dpi.timings;
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struct omap_dss_device *out = &dpi->output;
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struct omap_overlay_manager *mgr = out->manager;
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struct omap_video_timings *t = &dpi->timings;
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int lck_div = 0, pck_div = 0;
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unsigned long fck = 0;
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unsigned long pck;
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int r = 0;
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if (dpi.dsidev)
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r = dpi_set_dsi_clk(mgr->id, t->pixelclock, &fck,
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if (dpi->dsidev)
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r = dpi_set_dsi_clk(dpi, mgr->id, t->pixelclock, &fck,
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&lck_div, &pck_div);
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else
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r = dpi_set_dispc_clk(t->pixelclock, &fck,
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r = dpi_set_dispc_clk(dpi, t->pixelclock, &fck,
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&lck_div, &pck_div);
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if (r)
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return r;
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@ -335,28 +340,32 @@ static int dpi_set_mode(struct omap_overlay_manager *mgr)
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return 0;
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}
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static void dpi_config_lcd_manager(struct omap_overlay_manager *mgr)
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static void dpi_config_lcd_manager(struct dpi_data *dpi)
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{
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dpi.mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS;
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struct omap_dss_device *out = &dpi->output;
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struct omap_overlay_manager *mgr = out->manager;
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dpi.mgr_config.stallmode = false;
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dpi.mgr_config.fifohandcheck = false;
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dpi->mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS;
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dpi.mgr_config.video_port_width = dpi.data_lines;
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dpi->mgr_config.stallmode = false;
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dpi->mgr_config.fifohandcheck = false;
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dpi.mgr_config.lcden_sig_polarity = 0;
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dpi->mgr_config.video_port_width = dpi->data_lines;
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dss_mgr_set_lcd_config(mgr, &dpi.mgr_config);
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dpi->mgr_config.lcden_sig_polarity = 0;
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dss_mgr_set_lcd_config(mgr, &dpi->mgr_config);
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}
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static int dpi_display_enable(struct omap_dss_device *dssdev)
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{
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struct omap_dss_device *out = &dpi.output;
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struct dpi_data *dpi = &dpi_data;
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struct omap_dss_device *out = &dpi->output;
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int r;
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mutex_lock(&dpi.lock);
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mutex_lock(&dpi->lock);
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if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) && !dpi.vdds_dsi_reg) {
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if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) && !dpi->vdds_dsi_reg) {
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DSSERR("no VDSS_DSI regulator\n");
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r = -ENODEV;
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goto err_no_reg;
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@ -369,7 +378,7 @@ static int dpi_display_enable(struct omap_dss_device *dssdev)
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}
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if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI)) {
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r = regulator_enable(dpi.vdds_dsi_reg);
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r = regulator_enable(dpi->vdds_dsi_reg);
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if (r)
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goto err_reg_enable;
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}
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@ -382,21 +391,21 @@ static int dpi_display_enable(struct omap_dss_device *dssdev)
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if (r)
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goto err_src_sel;
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if (dpi.dsidev) {
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r = dsi_runtime_get(dpi.dsidev);
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if (dpi->dsidev) {
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r = dsi_runtime_get(dpi->dsidev);
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if (r)
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goto err_get_dsi;
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r = dsi_pll_init(dpi.dsidev, 0, 1);
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r = dsi_pll_init(dpi->dsidev, 0, 1);
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if (r)
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goto err_dsi_pll_init;
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}
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r = dpi_set_mode(out->manager);
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r = dpi_set_mode(dpi);
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if (r)
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goto err_set_mode;
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dpi_config_lcd_manager(out->manager);
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dpi_config_lcd_manager(dpi);
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mdelay(2);
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@ -404,78 +413,84 @@ static int dpi_display_enable(struct omap_dss_device *dssdev)
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if (r)
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goto err_mgr_enable;
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mutex_unlock(&dpi.lock);
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mutex_unlock(&dpi->lock);
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return 0;
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err_mgr_enable:
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err_set_mode:
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if (dpi.dsidev)
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dsi_pll_uninit(dpi.dsidev, true);
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if (dpi->dsidev)
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dsi_pll_uninit(dpi->dsidev, true);
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err_dsi_pll_init:
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if (dpi.dsidev)
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dsi_runtime_put(dpi.dsidev);
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if (dpi->dsidev)
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dsi_runtime_put(dpi->dsidev);
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err_get_dsi:
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err_src_sel:
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dispc_runtime_put();
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err_get_dispc:
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if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI))
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regulator_disable(dpi.vdds_dsi_reg);
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regulator_disable(dpi->vdds_dsi_reg);
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err_reg_enable:
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err_no_out_mgr:
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err_no_reg:
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mutex_unlock(&dpi.lock);
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mutex_unlock(&dpi->lock);
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return r;
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}
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static void dpi_display_disable(struct omap_dss_device *dssdev)
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{
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struct omap_overlay_manager *mgr = dpi.output.manager;
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struct dpi_data *dpi = &dpi_data;
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struct omap_overlay_manager *mgr = dpi->output.manager;
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mutex_lock(&dpi.lock);
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mutex_lock(&dpi->lock);
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dss_mgr_disable(mgr);
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if (dpi.dsidev) {
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if (dpi->dsidev) {
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dss_select_lcd_clk_source(mgr->id, OMAP_DSS_CLK_SRC_FCK);
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dsi_pll_uninit(dpi.dsidev, true);
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dsi_runtime_put(dpi.dsidev);
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dsi_pll_uninit(dpi->dsidev, true);
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dsi_runtime_put(dpi->dsidev);
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}
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dispc_runtime_put();
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if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI))
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regulator_disable(dpi.vdds_dsi_reg);
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regulator_disable(dpi->vdds_dsi_reg);
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mutex_unlock(&dpi.lock);
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mutex_unlock(&dpi->lock);
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}
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static void dpi_set_timings(struct omap_dss_device *dssdev,
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struct omap_video_timings *timings)
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{
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struct dpi_data *dpi = &dpi_data;
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DSSDBG("dpi_set_timings\n");
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mutex_lock(&dpi.lock);
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mutex_lock(&dpi->lock);
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dpi.timings = *timings;
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dpi->timings = *timings;
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mutex_unlock(&dpi.lock);
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mutex_unlock(&dpi->lock);
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}
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static void dpi_get_timings(struct omap_dss_device *dssdev,
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struct omap_video_timings *timings)
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{
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mutex_lock(&dpi.lock);
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struct dpi_data *dpi = &dpi_data;
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*timings = dpi.timings;
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mutex_lock(&dpi->lock);
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mutex_unlock(&dpi.lock);
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*timings = dpi->timings;
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mutex_unlock(&dpi->lock);
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}
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static int dpi_check_timings(struct omap_dss_device *dssdev,
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struct omap_video_timings *timings)
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{
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struct omap_overlay_manager *mgr = dpi.output.manager;
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struct dpi_data *dpi = &dpi_data;
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struct omap_overlay_manager *mgr = dpi->output.manager;
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int lck_div, pck_div;
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unsigned long fck;
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unsigned long pck;
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@ -488,8 +503,8 @@ static int dpi_check_timings(struct omap_dss_device *dssdev,
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if (timings->pixelclock == 0)
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return -EINVAL;
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if (dpi.dsidev) {
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ok = dpi_dsi_clk_calc(timings->pixelclock, &ctx);
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if (dpi->dsidev) {
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ok = dpi_dsi_clk_calc(dpi, timings->pixelclock, &ctx);
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if (!ok)
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return -EINVAL;
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@ -514,11 +529,13 @@ static int dpi_check_timings(struct omap_dss_device *dssdev,
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static void dpi_set_data_lines(struct omap_dss_device *dssdev, int data_lines)
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{
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mutex_lock(&dpi.lock);
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struct dpi_data *dpi = &dpi_data;
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dpi.data_lines = data_lines;
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mutex_lock(&dpi->lock);
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mutex_unlock(&dpi.lock);
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dpi->data_lines = data_lines;
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mutex_unlock(&dpi->lock);
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}
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static int dpi_verify_dsi_pll(struct platform_device *dsidev)
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@ -543,36 +560,36 @@ static int dpi_verify_dsi_pll(struct platform_device *dsidev)
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return 0;
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}
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static int dpi_init_regulator(void)
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static int dpi_init_regulator(struct dpi_data *dpi)
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{
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struct regulator *vdds_dsi;
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if (!dss_has_feature(FEAT_DPI_USES_VDDS_DSI))
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return 0;
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if (dpi.vdds_dsi_reg)
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if (dpi->vdds_dsi_reg)
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return 0;
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vdds_dsi = devm_regulator_get(&dpi.pdev->dev, "vdds_dsi");
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vdds_dsi = devm_regulator_get(&dpi->pdev->dev, "vdds_dsi");
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if (IS_ERR(vdds_dsi)) {
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if (PTR_ERR(vdds_dsi) != -EPROBE_DEFER)
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DSSERR("can't get VDDS_DSI regulator\n");
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return PTR_ERR(vdds_dsi);
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}
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dpi.vdds_dsi_reg = vdds_dsi;
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dpi->vdds_dsi_reg = vdds_dsi;
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return 0;
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}
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static void dpi_init_pll(void)
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static void dpi_init_pll(struct dpi_data *dpi)
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{
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struct platform_device *dsidev;
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if (dpi.dsidev)
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if (dpi->dsidev)
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return;
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dsidev = dpi_get_dsidev(dpi.output.dispc_channel);
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dsidev = dpi_get_dsidev(dpi->output.dispc_channel);
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if (!dsidev)
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return;
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@ -581,7 +598,7 @@ static void dpi_init_pll(void)
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return;
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}
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dpi.dsidev = dsidev;
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dpi->dsidev = dsidev;
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}
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/*
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@ -618,14 +635,15 @@ static enum omap_channel dpi_get_channel(void)
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static int dpi_connect(struct omap_dss_device *dssdev,
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struct omap_dss_device *dst)
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{
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struct dpi_data *dpi = &dpi_data;
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struct omap_overlay_manager *mgr;
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int r;
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r = dpi_init_regulator();
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r = dpi_init_regulator(dpi);
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if (r)
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return r;
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dpi_init_pll();
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dpi_init_pll(dpi);
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mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel);
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if (!mgr)
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@ -676,7 +694,8 @@ static const struct omapdss_dpi_ops dpi_ops = {
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static void dpi_init_output(struct platform_device *pdev)
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{
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struct omap_dss_device *out = &dpi.output;
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struct dpi_data *dpi = &dpi_data;
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struct omap_dss_device *out = &dpi->output;
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out->dev = &pdev->dev;
|
||||
out->id = OMAP_DSS_OUTPUT_DPI;
|
||||
|
|
@ -691,16 +710,21 @@ static void dpi_init_output(struct platform_device *pdev)
|
|||
|
||||
static void __exit dpi_uninit_output(struct platform_device *pdev)
|
||||
{
|
||||
struct omap_dss_device *out = &dpi.output;
|
||||
struct dpi_data *dpi = &dpi_data;
|
||||
struct omap_dss_device *out = &dpi->output;
|
||||
|
||||
omapdss_unregister_output(out);
|
||||
}
|
||||
|
||||
static int omap_dpi_probe(struct platform_device *pdev)
|
||||
{
|
||||
dpi.pdev = pdev;
|
||||
struct dpi_data *dpi = &dpi_data;
|
||||
|
||||
mutex_init(&dpi.lock);
|
||||
dpi->pdev = pdev;
|
||||
|
||||
dev_set_drvdata(&pdev->dev, dpi);
|
||||
|
||||
mutex_init(&dpi->lock);
|
||||
|
||||
dpi_init_output(pdev);
|
||||
|
||||
|
|
@ -736,6 +760,7 @@ void __exit dpi_uninit_platform_driver(void)
|
|||
|
||||
int __init dpi_init_port(struct platform_device *pdev, struct device_node *port)
|
||||
{
|
||||
struct dpi_data *dpi = &dpi_data;
|
||||
struct device_node *ep;
|
||||
u32 datalines;
|
||||
int r;
|
||||
|
|
@ -750,17 +775,17 @@ int __init dpi_init_port(struct platform_device *pdev, struct device_node *port)
|
|||
goto err_datalines;
|
||||
}
|
||||
|
||||
dpi.data_lines = datalines;
|
||||
dpi->data_lines = datalines;
|
||||
|
||||
of_node_put(ep);
|
||||
|
||||
dpi.pdev = pdev;
|
||||
dpi->pdev = pdev;
|
||||
|
||||
mutex_init(&dpi.lock);
|
||||
mutex_init(&dpi->lock);
|
||||
|
||||
dpi_init_output(pdev);
|
||||
|
||||
dpi.port_initialized = true;
|
||||
dpi->port_initialized = true;
|
||||
|
||||
return 0;
|
||||
|
||||
|
|
@ -772,8 +797,10 @@ err_datalines:
|
|||
|
||||
void __exit dpi_uninit_port(void)
|
||||
{
|
||||
if (!dpi.port_initialized)
|
||||
struct dpi_data *dpi = &dpi_data;
|
||||
|
||||
if (!dpi->port_initialized)
|
||||
return;
|
||||
|
||||
dpi_uninit_output(dpi.pdev);
|
||||
dpi_uninit_output(dpi->pdev);
|
||||
}
|
||||
|
|
|
|||
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