Hi,
Current clock driver of exynos5250 does not contain sub mux clock
definition for aclk_266 and aclk_333. These sub mux clocks are driven by
output of divider clocks. These sub mux clocks drive the gate clocks
of Gscaler and MFC. Currently Gscaler and MFC gate clocks are
referring to divider
clocks instead of sub mux clocks. Hence these clocks are added.
In addition, gscaler block is also driven aclk_300. The entire clock
tree is added
for this.
I will add above information in Changelog and resend the patch
On Wed, Mar 27, 2013 at 7:34 AM, Mike Turquette <mturquette@xxxxxxxxxx> wrote:
> Quoting Prasanna Kumar (2013-03-25 21:26:26)
>> From: Prasanna Kumar <prasanna.ps@xxxxxxxxxxx>
>
> No need for the above line.
>
>>
>> Gscaler :
>>
>> 1. For "aclk_300_gscl",following clocks are added
>> Mux clocks
>> mout_aclk_300_gscl_mid,
>> mout_aclk_300_gscl_mid1,
>> mout_aclk_300_gscl
>> Divider clock
>> div_aclk300_gscl
>> Sub-Mux clock ( driven from output of divider clock)
>> mout_sub_aclk300
>> 2. For "aclk_266_gscl",
>> Sub-Mux clock "mout_sub_aclk266" added
>> Divider clock has been modified to refer Sub-Mux clock
>>
>> MFC :
>> For "aclk_333"
>> Sub-Mux clock "mout_sub_aclk333" added
>> Divider clock has been modified to refer Sub-Mux clock
>> Signed-off-by: Prasanna Kumar <prasanna.ps@xxxxxxxxxxx>
>
> The changelog above is not very human-readable. Can you include some
> explanation of why you are making this change (e.g. enables some
> device)?
>
> Thanks,
> Mike
>
>> ---
>> drivers/clk/samsung/clk-exynos5250.c | 57 +++++++++++++++++++++++++--------
>> 1 files changed, 43 insertions(+), 14 deletions(-)
>>
>> diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c
>> index e40d6af..40dff9d 100644
>> --- a/drivers/clk/samsung/clk-exynos5250.c
>> +++ b/drivers/clk/samsung/clk-exynos5250.c
>> @@ -24,7 +24,9 @@
>> #define DIV_CPU0 0x500
>> #define SRC_CORE1 0x4204
>> #define SRC_TOP0 0x10210
>> +#define SRC_TOP1 0x10214
>> #define SRC_TOP2 0x10218
>> +#define SRC_TOP3 0x1021C
>> #define SRC_GSCL 0x10220
>> #define SRC_DISP1_0 0x1022c
>> #define SRC_MAU 0x10240
>> @@ -112,7 +114,9 @@ static __initdata unsigned long exynos5250_clk_regs[] = {
>> DIV_CPU0,
>> SRC_CORE1,
>> SRC_TOP0,
>> + SRC_TOP1,
>> SRC_TOP2,
>> + SRC_TOP3,
>> SRC_GSCL,
>> SRC_DISP1_0,
>> SRC_MAU,
>> @@ -167,6 +171,13 @@ PNAME(mout_mpll_user_p) = { "fin_pll", "sclk_mpll" };
>> PNAME(mout_bpll_user_p) = { "fin_pll", "sclk_bpll" };
>> PNAME(mout_aclk166_p) = { "sclk_cpll", "sclk_mpll_user" };
>> PNAME(mout_aclk200_p) = { "sclk_mpll_user", "sclk_bpll_user" };
>> +PNAME(mout_sub_aclk266_p) = { "fin_pll", "div_aclk266" };
>> +PNAME(mout_aclk_300_gscl_mid_p) = { "sclk_mpll_user", "sclk_bpll_user"};
>> +PNAME(mout_aclk_300_gscl_mid1_p) = { "sclk_vpll", "sclk_cpll"};
>> +PNAME(mout_aclk_300_gscl_p) = { "mout_aclk_300_gscl_mid",
>> + "mout_aclk_300_gscl_mid1" };
>> +PNAME(mout_sub_aclk300_p) = { "fin_pll", "div_aclk300_gscl" };
>> +PNAME(mout_sub_aclk333_p) = { "fin_pll", "div_aclk333" };
>> PNAME(mout_hdmi_p) = { "div_hdmi_pixel", "sclk_hdmiphy" };
>> PNAME(mout_usb3_p) = { "sclk_mpll_user", "sclk_cpll" };
>> PNAME(mout_group1_p) = { "fin_pll", "fin_pll", "sclk_hdmi27m",
>> @@ -220,8 +231,20 @@ struct samsung_mux_clock exynos5250_mux_clks[] __initdata = {
>> MUX(none, "sclk_mpll_user", mout_mpll_user_p, SRC_TOP2, 20, 1),
>> MUX(none, "sclk_bpll_user", mout_bpll_user_p, SRC_TOP2, 24, 1),
>> MUX(none, "mout_aclk166", mout_aclk166_p, SRC_TOP0, 8, 1),
>> - MUX(none, "mout_aclk333", mout_aclk166_p, SRC_TOP0, 16, 1),
>> MUX(none, "mout_aclk200", mout_aclk200_p, SRC_TOP0, 12, 1),
>> + MUX_A(none, "mout_sub_aclk266", mout_sub_aclk266_p,
>> + SRC_TOP3, 8, 1, "m_sub_aclk266"),
>> + MUX(none, "mout_aclk_300_gscl", mout_aclk_300_gscl_p,
>> + SRC_TOP0, 25, 1),
>> + MUX(none, "mout_aclk_300_gscl_mid", mout_aclk_300_gscl_mid_p,
>> + SRC_TOP0, 24, 1),
>> + MUX(none, "mout_aclk_300_gscl_mid1", mout_aclk_300_gscl_mid1_p,
>> + SRC_TOP1, 12, 1),
>> + MUX_A(none, "mout_sub_aclk300", mout_sub_aclk300_p,
>> + SRC_TOP3, 10, 1, "m_sub_aclk300"),
>> + MUX(none, "mout_aclk333", mout_aclk166_p, SRC_TOP0, 16, 1),
>> + MUX_A(none, "mout_sub_aclk333", mout_sub_aclk333_p,
>> + SRC_TOP3, 24, 1, "m_sub_aclk333"),
>> MUX(none, "mout_cam_bayer", mout_group1_p, SRC_GSCL, 12, 4),
>> MUX(none, "mout_cam0", mout_group1_p, SRC_GSCL, 16, 4),
>> MUX(none, "mout_cam1", mout_group1_p, SRC_GSCL, 20, 4),
>> @@ -257,10 +280,12 @@ struct samsung_div_clock exynos5250_div_clks[] __initdata = {
>> DIV(none, "sclk_apll", "mout_apll", DIV_CPU0, 24, 3),
>> DIV(none, "aclk66_pre", "sclk_mpll_user", DIV_TOP1, 24, 3),
>> DIV(none, "aclk66", "aclk66_pre", DIV_TOP0, 0, 3),
>> - DIV(none, "aclk266", "sclk_mpll_user", DIV_TOP0, 16, 3),
>> DIV(none, "aclk166", "mout_aclk166", DIV_TOP0, 8, 3),
>> - DIV(none, "aclk333", "mout_aclk333", DIV_TOP0, 20, 3),
>> DIV(none, "aclk200", "mout_aclk200", DIV_TOP0, 12, 3),
>> + DIV(none, "div_aclk266", "sclk_mpll_user", DIV_TOP0, 16, 3),
>> + DIV(none, "div_aclk300_gscl", "mout_aclk_300_gscl",
>> + DIV_TOP1, 14, 3),
>> + DIV(none, "div_aclk333", "mout_aclk333", DIV_TOP0, 20, 3),
>> DIV(none, "div_cam_bayer", "mout_cam_bayer", DIV_GSCL, 12, 4),
>> DIV(none, "div_cam0", "mout_cam0", DIV_GSCL, 16, 4),
>> DIV(none, "div_cam1", "mout_cam1", DIV_GSCL, 20, 4),
>> @@ -313,19 +338,23 @@ struct samsung_div_clock exynos5250_div_clks[] __initdata = {
>> };
>>
>> struct samsung_gate_clock exynos5250_gate_clks[] __initdata = {
>> - GATE(gscl0, "gscl0", "none", GATE_IP_GSCL, 0, 0, 0),
>> - GATE(gscl1, "gscl1", "none", GATE_IP_GSCL, 1, 0, 0),
>> - GATE(gscl2, "gscl2", "aclk266", GATE_IP_GSCL, 2, 0, 0),
>> - GATE(gscl3, "gscl3", "aclk266", GATE_IP_GSCL, 3, 0, 0),
>> + GATE(gscl0, "gscl0", "mout_sub_aclk266", GATE_IP_GSCL, 0, 0, 0),
>> + GATE(gscl1, "gscl1", "mout_sub_aclk266", GATE_IP_GSCL, 1, 0, 0),
>> + GATE(gscl2, "gscl2", "mout_sub_aclk266", GATE_IP_GSCL, 2, 0, 0),
>> + GATE(gscl3, "gscl3", "mout_sub_aclk266", GATE_IP_GSCL, 3, 0, 0),
>> GATE(gscl_wa, "gscl_wa", "div_gscl_wa", GATE_IP_GSCL, 5, 0, 0),
>> GATE(gscl_wb, "gscl_wb", "div_gscl_wb", GATE_IP_GSCL, 6, 0, 0),
>> - GATE(smmu_gscl0, "smmu_gscl0", "aclk266", GATE_IP_GSCL, 7, 0, 0),
>> - GATE(smmu_gscl1, "smmu_gscl1", "aclk266", GATE_IP_GSCL, 8, 0, 0),
>> - GATE(smmu_gscl2, "smmu_gscl2", "aclk266", GATE_IP_GSCL, 9, 0, 0),
>> - GATE(smmu_gscl3, "smmu_gscl3", "aclk266", GATE_IP_GSCL, 10, 0, 0),
>> - GATE(mfc, "mfc", "aclk333", GATE_IP_MFC, 0, 0, 0),
>> - GATE(smmu_mfcl, "smmu_mfcl", "aclk333", GATE_IP_MFC, 1, 0, 0),
>> - GATE(smmu_mfcr, "smmu_mfcr", "aclk333", GATE_IP_MFC, 2, 0, 0),
>> + GATE(smmu_gscl0, "smmu_gscl0", "mout_sub_aclk266",
>> + GATE_IP_GSCL, 7, 0, 0),
>> + GATE(smmu_gscl1, "smmu_gscl1", "mout_sub_aclk266",
>> + GATE_IP_GSCL, 8, 0, 0),
>> + GATE(smmu_gscl2, "smmu_gscl2", "mout_sub_aclk266",
>> + GATE_IP_GSCL, 9, 0, 0),
>> + GATE(smmu_gscl3, "smmu_gscl3", "mout_sub_aclk266",
>> + GATE_IP_GSCL, 10, 0, 0),
>> + GATE(mfc, "mfc", "mout_sub_aclk333", GATE_IP_MFC, 0, 0, 0),
>> + GATE(smmu_mfcl, "smmu_mfcl", "mout_sub_aclk333", GATE_IP_MFC, 1, 0, 0),
>> + GATE(smmu_mfcr, "smmu_mfcr", "mout_sub_aclk333", GATE_IP_MFC, 2, 0, 0),
>> GATE(rotator, "rotator", "aclk266", GATE_IP_GEN, 1, 0, 0),
>> GATE(jpeg, "jpeg", "aclk166", GATE_IP_GEN, 2, 0, 0),
>> GATE(mdma1, "mdma1", "aclk266", GATE_IP_GEN, 4, 0, 0),
>> --
>> 1.7.5.4
>>
>>
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>
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--
Thanks
Prasanna Kumar
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