[PATCH 5/5] clk/exynos5420: assign sclk_pixel id to pixel clock divider

[Rahul Sharma]

+Mike

On Tue, Jun 18, 2013 at 7:54 PM, Rahul Sharma <r.sh.open at gmail.com> wrote:
> With this patch, it is at par with Exynos5250 and Exynos4 clocks
> where sclk_pixel ID is assigned to a divider clock but in real,
> sclk_pixel is listed under gate clocks (enum value).
>
> Alternate to this, I can allocate a new ID, div_pixel, listed under
> new category of Divider Clocks for Exyno4, 5250 and 5420.
> div_pixel ID can be assigned to pixel clock dividers for all 3 SoCs.
> This ID can be accessed by hdmi driver as usual. While sclk_pixel
> ID can be left unused for Exyno4, 5250 as there are no pixel clock
> gates. And, For 5420, sclk_pixel can optionally be used to
> enable/disable the pixel clock gate.
>
> Regards,
> Rahul Sharma.
>
> On Tue, Jun 18, 2013 at 8:03 PM, Rahul Sharma <rahul.sharma at samsung.com> wrote:
>> sclk_pixel is used to represent pixel clock divider on all exynos
>> SoCs not as a gate clock. It is queried in driver to pass as the
>> parent to hdmi clock while switching between parents. A new ID can
>> be asssigned Pixel gate clock which is currently not in use. Pixel
>> clock gate is default 'on'.
>>
>> Signed-off-by: Rahul Sharma <rahul.sharma at samsung.com>
>> ---
>>  drivers/clk/samsung/clk-exynos5420.c |    4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
>> index 59cf177..edd0696 100644
>> --- a/drivers/clk/samsung/clk-exynos5420.c
>> +++ b/drivers/clk/samsung/clk-exynos5420.c
>> @@ -434,7 +434,7 @@ struct samsung_div_clock exynos5420_div_clks[] __initdata = {
>>         DIV(none, "dout_fimd1", "mout_fimd1", DIV_DISP10, 0, 4),
>>         DIV(none, "dout_mipi1", "mout_mipi1", DIV_DISP10, 16, 8),
>>         DIV(none, "dout_dp1", "mout_dp1", DIV_DISP10, 24, 4),
>> -       DIV(none, "dout_hdmi_pixel", "mout_pixel", DIV_DISP10, 28, 4),
>> +       DIV(sclk_pixel, "dout_hdmi_pixel", "mout_pixel", DIV_DISP10, 28, 4),
>>
>>         /* Audio Block */
>>         DIV(none, "dout_maudio0", "mout_maudio0", DIV_MAU, 20, 4),
>> @@ -570,7 +570,7 @@ struct samsung_gate_clock exynos5420_gate_clks[] __initdata = {
>>                 GATE_TOP_SCLK_DISP1, 3, CLK_SET_RATE_PARENT, 0),
>>         GATE(sclk_hdmi, "sclk_hdmi", "mout_hdmi",
>>                 GATE_TOP_SCLK_DISP1, 9, CLK_SET_RATE_PARENT, 0),
>> -       GATE(sclk_pixel, "sclk_pixel", "dout_hdmi_pixel",
>> +       GATE(none, "sclk_pixel", "dout_hdmi_pixel",
>>                 GATE_TOP_SCLK_DISP1, 10, CLK_SET_RATE_PARENT, 0),
>>         GATE(sclk_dp1, "sclk_dp1", "dout_dp1",
>>                 GATE_TOP_SCLK_DISP1, 20, CLK_SET_RATE_PARENT, 0),
>> --
>> 1.7.10.4
>>