From 4eb9560b8ffa854caa7c625a955762d4b43b4841 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Wed, 9 Jul 2014 15:54:36 +0800 Subject: [PATCH] mfd: sun6i-prcm: Add support for Allwinner A23 PRCM The Allwinner A23 SoC has a PRCM unit like the previous A31 SoC. The differences are the AR100 clock can no longer be modified, the APB0 clock has different divisors, and some clock gates are gone. This patch adds a compatible with a modified subdevice list for the A23. Signed-off-by: Chen-Yu Tsai Acked-by: Maxime Ripard Signed-off-by: Lee Jones --- .../devicetree/bindings/mfd/sun6i-prcm.txt | 2 +- drivers/mfd/sun6i-prcm.c | 30 +++++++++++++++++++ 2 files changed, 31 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt b/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt index 1f5a31fef907..03c5a551da55 100644 --- a/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt +++ b/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt @@ -4,7 +4,7 @@ PRCM is an MFD device exposing several Power Management related devices (like clks and reset controllers). Required properties: - - compatible: "allwinner,sun6i-a31-prcm" + - compatible: "allwinner,sun6i-a31-prcm" or "allwinner,sun8i-a23-prcm" - reg: The PRCM registers range The prcm node may contain several subdevices definitions: diff --git a/drivers/mfd/sun6i-prcm.c b/drivers/mfd/sun6i-prcm.c index 718fc4d2adc0..283ab8d197e4 100644 --- a/drivers/mfd/sun6i-prcm.c +++ b/drivers/mfd/sun6i-prcm.c @@ -76,16 +76,46 @@ static const struct mfd_cell sun6i_a31_prcm_subdevs[] = { }, }; +static const struct mfd_cell sun8i_a23_prcm_subdevs[] = { + { + .name = "sun8i-a23-apb0-clk", + .of_compatible = "allwinner,sun8i-a23-apb0-clk", + .num_resources = ARRAY_SIZE(sun6i_a31_apb0_clk_res), + .resources = sun6i_a31_apb0_clk_res, + }, + { + .name = "sun6i-a31-apb0-gates-clk", + .of_compatible = "allwinner,sun8i-a23-apb0-gates-clk", + .num_resources = ARRAY_SIZE(sun6i_a31_apb0_gates_clk_res), + .resources = sun6i_a31_apb0_gates_clk_res, + }, + { + .name = "sun6i-a31-apb0-clock-reset", + .of_compatible = "allwinner,sun6i-a31-clock-reset", + .num_resources = ARRAY_SIZE(sun6i_a31_apb0_rstc_res), + .resources = sun6i_a31_apb0_rstc_res, + }, +}; + static const struct prcm_data sun6i_a31_prcm_data = { .nsubdevs = ARRAY_SIZE(sun6i_a31_prcm_subdevs), .subdevs = sun6i_a31_prcm_subdevs, }; +static const struct prcm_data sun8i_a23_prcm_data = { + .nsubdevs = ARRAY_SIZE(sun8i_a23_prcm_subdevs), + .subdevs = sun8i_a23_prcm_subdevs, +}; + static const struct of_device_id sun6i_prcm_dt_ids[] = { { .compatible = "allwinner,sun6i-a31-prcm", .data = &sun6i_a31_prcm_data, }, + { + .compatible = "allwinner,sun8i-a23-prcm", + .data = &sun8i_a23_prcm_data, + }, { /* sentinel */ }, };