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video: da8xx-fb: clk_get on connection id fck

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do clk_get on connection id "fck" to support OMAP based
platforms having multiple clocks for module. Without this
driver change clk_get fails on am335x.

This patch is based on the discussion in community
http://marc.info/?l=linux-kernel&m=135166018907827&w=2

Signed-off-by: Manjunathappa <prakash.pm@ti.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Manjunathappa 2012-11-20 18:11:01 +05:30 committed by Tomi Valkeinen
parent 3b43ad201d
commit 81cec3c756
4 changed files with 4 additions and 3 deletions
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2
arch/arm/mach-davinci/da830.c
View File

@ -408,7 +408,7 @@ static struct clk_lookup da830_clks[] = {
CLK(NULL, "pwm2", &pwm2_clk),
CLK("eqep.0", NULL, &eqep0_clk),
CLK("eqep.1", NULL, &eqep1_clk),
CLK("da8xx_lcdc.0", NULL, &lcdc_clk),
CLK("da8xx_lcdc.0", "fck", &lcdc_clk),
CLK("davinci-mcasp.0", NULL, &mcasp0_clk),
CLK("davinci-mcasp.1", NULL, &mcasp1_clk),
CLK("davinci-mcasp.2", NULL, &mcasp2_clk),

2
arch/arm/mach-davinci/da850.c
View File

@ -396,7 +396,7 @@ static struct clk_lookup da850_clks[] = {
CLK(NULL, "rmii", &rmii_clk),
CLK("davinci_emac.1", NULL, &emac_clk),
CLK("davinci-mcasp.0", NULL, &mcasp_clk),
CLK("da8xx_lcdc.0", NULL, &lcdc_clk),
CLK("da8xx_lcdc.0", "fck", &lcdc_clk),
CLK("davinci_mmc.0", NULL, &mmcsd0_clk),
CLK("davinci_mmc.1", NULL, &mmcsd1_clk),
CLK(NULL, "aemif", &aemif_clk),

1
arch/arm/mach-davinci/pm_domain.c
View File

@ -53,6 +53,7 @@ static struct dev_pm_domain davinci_pm_domain = {
static struct pm_clk_notifier_block platform_bus_notifier = {
.pm_domain = &davinci_pm_domain,
.con_ids = { "fck", NULL, },
};
static int __init davinci_pm_runtime_init(void)

2
drivers/video/da8xx-fb.c
View File

@ -1248,7 +1248,7 @@ static int __devinit fb_probe(struct platform_device *device)
goto err_request_mem;
}
fb_clk = clk_get(&device->dev, NULL);
fb_clk = clk_get(&device->dev, "fck");
if (IS_ERR(fb_clk)) {
dev_err(&device->dev, "Can not get device clock\n");
ret = -ENODEV;