From 664e9e495a3ada96ed2ebab89edb40c4fc132bd7 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 24 Dec 2012 16:01:39 -0200 Subject: [PATCH 1/2] ARM: dts: imx23-olinuxino: Fix IOMUX settings On the imx23-olinuxino board GPIO2_1 is connected to the LED and GPIO0_17 is the USB PHY reset. So make the IOMUX assignment properly. Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx23-olinuxino.dts | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts index 7c43b8e70b9f..e7484e4ea659 100644 --- a/arch/arm/boot/dts/imx23-olinuxino.dts +++ b/arch/arm/boot/dts/imx23-olinuxino.dts @@ -39,17 +39,17 @@ hog_pins_a: hog@0 { reg = <0>; fsl,pinmux-ids = < - 0x2013 /* MX23_PAD_SSP1_DETECT__GPIO_2_1 */ + 0x0113 /* MX23_PAD_GPMI_ALE__GPIO_0_17 */ >; fsl,drive-strength = <0>; fsl,voltage = <1>; fsl,pull-up = <0>; }; - led_pin_gpio0_17: led_gpio0_17@0 { + led_pin_gpio2_1: led_gpio2_1@0 { reg = <0>; fsl,pinmux-ids = < - 0x0113 /* MX23_PAD_GPMI_ALE__GPIO_0_17 */ + 0x2013 /* MX23_PAD_SSP1_DETECT__GPIO_2_1 */ >; fsl,drive-strength = <0>; fsl,voltage = <1>; @@ -110,7 +110,7 @@ leds { compatible = "gpio-leds"; pinctrl-names = "default"; - pinctrl-0 = <&led_pin_gpio0_17>; + pinctrl-0 = <&led_pin_gpio2_1>; user { label = "green"; From 6c1ecba8d84841277d68140ef485335d5be28485 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Thu, 22 Nov 2012 13:49:14 +0100 Subject: [PATCH 2/2] video: mxsfb: fix crash when unblanking the display MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The VDCTRL4 register does not provide the MXS SET/CLR/TOGGLE feature. The write in mxsfb_disable_controller() sets the data_cnt for the LCD DMA to 0 which obviously means the max. count for the LCD DMA and leads to overwriting arbitrary memory when the display is unblanked. Signed-off-by: Lothar Waßmann Acked-by: Juergen Beisert Tested-by: Lauri Hintsala Cc: Signed-off-by: Shawn Guo --- drivers/video/mxsfb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index 49619b441500..f2a49ef772f3 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -369,7 +369,8 @@ static void mxsfb_disable_controller(struct fb_info *fb_info) loop--; } - writel(VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4 + REG_CLR); + reg = readl(host->base + LCDC_VDCTRL4); + writel(reg & ~VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4); clk_disable_unprepare(host->clk);