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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2011-11-09 08:35:14 +0400 |
|---|---|---|
| committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2011-11-22 03:43:21 +0400 |
| commit | 5e47431aabf716c9ad9eacf1a966e1fc1469c809 (patch) | |
| tree | f2d588fe8e00656b83dc8ee30d17c4777a9b1e9e /arch/arm/mach-shmobile/board-ap4evb.c | |
| parent | 08750617badd03fd95f33921a5213a5632022178 (diff) | |
| download | linux-5e47431aabf716c9ad9eacf1a966e1fc1469c809.tar.xz | |
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 <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Diffstat (limited to 'arch/arm/mach-shmobile/board-ap4evb.c')
| -rw-r--r-- | arch/arm/mach-shmobile/board-ap4evb.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c index b2e32c8c9e54..73503ed8bde2 100644 --- a/arch/arm/mach-shmobile/board-ap4evb.c +++ b/arch/arm/mach-shmobile/board-ap4evb.c @@ -564,6 +564,30 @@ static struct platform_device keysc_device = { }; /* MIPI-DSI */ +#define PHYCTRL 0x0070 +static int sh_mipi_set_dot_clock(struct platform_device *pdev, + void __iomem *base, + int enable) +{ + struct clk *pck = clk_get(&pdev->dev, "dsip_clk"); + void __iomem *phy = base + PHYCTRL; + + if (IS_ERR(pck)) + return PTR_ERR(pck); + + if (enable) { + clk_set_rate(pck, clk_round_rate(pck, 24000000)); + iowrite32(ioread32(phy) | (0xb << 8), phy); + clk_enable(pck); + } else { + clk_disable(pck); + } + + clk_put(pck); + + return 0; +} + static struct resource mipidsi0_resources[] = { [0] = { .start = 0xffc60000, @@ -583,6 +607,7 @@ static struct sh_mipi_dsi_info mipidsi0_info = { .lane = 2, .vsynw_offset = 17, .flags = SH_MIPI_DSI_SYNC_PULSES_MODE, + .set_dot_clock = sh_mipi_set_dot_clock, }; static struct platform_device mipidsi0_device = { |