From 5e47431aabf716c9ad9eacf1a966e1fc1469c809 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 8 Nov 2011 20:35:14 -0800 Subject: fbdev: sh_mipi_dsi: add set_dot_clock() for each platform Dot clock of SH MIPI are depends on each platform board. This patch adds set_dot_clock() function for it. Signed-off-by: Kuninori Morimoto Acked-by: Magnus Damm Signed-off-by: Florian Tobias Schandinat --- arch/arm/mach-shmobile/board-ag5evm.c | 36 ++++++++++++++++++++++++++++++----- 1 file changed, 31 insertions(+), 5 deletions(-) (limited to 'arch/arm/mach-shmobile/board-ag5evm.c') diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c index 6993844424c..15072c51e03 100644 --- a/arch/arm/mach-shmobile/board-ag5evm.c +++ b/arch/arm/mach-shmobile/board-ag5evm.c @@ -321,6 +321,36 @@ static struct resource mipidsi0_resources[] = { }, }; +#define DSI0PHYCR 0xe615006c +static int sh_mipi_set_dot_clock(struct platform_device *pdev, + void __iomem *base, + int enable) +{ + struct clk *pck; + int ret; + + pck = clk_get(&pdev->dev, "dsip_clk"); + if (IS_ERR(pck)) { + ret = PTR_ERR(pck); + goto sh_mipi_set_dot_clock_pck_err; + } + + if (enable) { + clk_set_rate(pck, clk_round_rate(pck, 24000000)); + __raw_writel(0x2a809010, DSI0PHYCR); + clk_enable(pck); + } else { + clk_disable(pck); + } + + ret = 0; + + clk_put(pck); + +sh_mipi_set_dot_clock_pck_err: + return ret; +} + static struct sh_mipi_dsi_info mipidsi0_info = { .data_format = MIPI_RGB888, .lcd_chan = &lcdc0_info.ch[0], @@ -329,6 +359,7 @@ static struct sh_mipi_dsi_info mipidsi0_info = { .clksrc = 1, .flags = SH_MIPI_DSI_HSABM | SH_MIPI_DSI_SYNC_PULSES_MODE, + .set_dot_clock = sh_mipi_set_dot_clock, }; static struct platform_device mipidsi0_device = { @@ -476,8 +507,6 @@ static void __init ag5evm_map_io(void) shmobile_setup_console(); } -#define DSI0PHYCR 0xe615006c - static void __init ag5evm_init(void) { sh73a0_pinmux_init(); @@ -558,9 +587,6 @@ static void __init ag5evm_init(void) gpio_direction_output(GPIO_PORT235, 0); lcd_backlight_reset(); - /* MIPI-DSI clock setup */ - __raw_writel(0x2a809010, DSI0PHYCR); - /* enable SDHI0 on CN15 [SD I/F] */ gpio_request(GPIO_FN_SDHICD0, NULL); gpio_request(GPIO_FN_SDHIWP0, NULL); -- cgit v1.2.3