Add required clock support for Gscaler for exynos5

Signed-off-by: Abhilash Kesavan <a.kesa...@samsung.com>
Signed-off-by: Leela Krishna Amudala <l.kris...@samsung.com>
Signed-off-by: Prathyush K <prathyus...@samsung.com>
Signed-off-by: Shaik Ameer Basha <shaik.am...@samsung.com>
---
 arch/arm/mach-exynos/clock-exynos5.c |   79 ++++++++++++++++++++++++++++++++++
 1 files changed, 79 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-exynos/clock-exynos5.c 
b/arch/arm/mach-exynos/clock-exynos5.c
index fefa336..49f98cd 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -741,6 +741,26 @@ static struct clk exynos5_init_clocks_off[] = {
                .enable         = exynos5_clk_ip_peric_ctrl,
                .ctrlbit        = (1 << 14),
        }, {
+               .name           = "gscl",
+               .devname        = "exynos-gsc.0",
+               .enable         = exynos5_clk_ip_gscl_ctrl,
+               .ctrlbit        = (1 << 0),
+       }, {
+               .name           = "gscl",
+               .devname        = "exynos-gsc.1",
+               .enable         = exynos5_clk_ip_gscl_ctrl,
+               .ctrlbit        = (1 << 1),
+       }, {
+               .name           = "gscl",
+               .devname        = "exynos-gsc.2",
+               .enable         = exynos5_clk_ip_gscl_ctrl,
+               .ctrlbit        = (1 << 2),
+       }, {
+               .name           = "gscl",
+               .devname        = "exynos-gsc.3",
+               .enable         = exynos5_clk_ip_gscl_ctrl,
+               .ctrlbit        = (1 << 3),
+       }, {
                .name           = SYSMMU_CLOCK_NAME,
                .devname        = SYSMMU_CLOCK_DEVNAME(mfc_l, 0),
                .enable         = &exynos5_clk_ip_mfc_ctrl,
@@ -1116,6 +1136,61 @@ static struct clksrc_clk exynos5_clksrcs[] = {
        },
 };
 
+/* For ACLK_300_gscl_mid */
+static struct clksrc_clk exynos5_clk_mout_aclk_300_gscl_mid = {
+       .clk    = {
+               .name   = "mout_aclk_300_gscl_mid",
+       },
+       .sources = &exynos5_clkset_aclk,
+       .reg_src = { .reg = EXYNOS5_CLKSRC_TOP0, .shift = 24, .size = 1 },
+};
+
+/* For ACLK_300_gscl */
+struct clk *exynos5_clkset_aclk_300_gscl_list[] = {
+       [0] = &exynos5_clk_mout_aclk_300_gscl_mid.clk,
+       [1] = &exynos5_clk_sclk_vpll.clk,
+};
+
+struct clksrc_sources exynos5_clkset_aclk_300_gscl = {
+       .sources        = exynos5_clkset_aclk_300_gscl_list,
+       .nr_sources     = ARRAY_SIZE(exynos5_clkset_aclk_300_gscl_list),
+};
+
+static struct clksrc_clk exynos5_clk_mout_aclk_300_gscl = {
+       .clk    = {
+               .name           = "mout_aclk_300_gscl",
+       },
+       .sources = &exynos5_clkset_aclk_300_gscl,
+       .reg_src = { .reg = EXYNOS5_CLKSRC_TOP0, .shift = 25, .size = 1 },
+};
+
+static struct clksrc_clk exynos5_clk_dout_aclk_300_gscl = {
+       .clk    = {
+               .name           = "dout_aclk_300_gscl",
+               .parent         = &exynos5_clk_mout_aclk_300_gscl.clk,
+       },
+       .reg_div = { .reg = EXYNOS5_CLKDIV_TOP1, .shift = 12, .size = 3 },
+};
+
+/* Possible clock sources for aclk_300_gscl_sub Mux */
+static struct clk *clk_src_gscl_300_list[] = {
+       [0] = &clk_ext_xtal_mux,
+       [1] = &exynos5_clk_dout_aclk_300_gscl.clk,
+};
+
+static struct clksrc_sources clk_src_gscl_300 = {
+       .sources        = clk_src_gscl_300_list,
+       .nr_sources     = ARRAY_SIZE(clk_src_gscl_300_list),
+};
+
+static struct clksrc_clk exynos5_clk_aclk_300_gscl = {
+       .clk    = {
+               .name           = "aclk_300_gscl",
+       },
+       .sources = &clk_src_gscl_300,
+       .reg_src = { .reg = EXYNOS5_CLKSRC_TOP3, .shift = 10, .size = 1 },
+};
+
 /* Clock initialization code */
 static struct clksrc_clk *exynos5_sysclks[] = {
        &exynos5_clk_mout_apll,
@@ -1139,6 +1214,10 @@ static struct clksrc_clk *exynos5_sysclks[] = {
        &exynos5_clk_aclk_266,
        &exynos5_clk_aclk_200,
        &exynos5_clk_aclk_166,
+       &exynos5_clk_mout_aclk_300_gscl_mid,
+       &exynos5_clk_mout_aclk_300_gscl,
+       &exynos5_clk_dout_aclk_300_gscl,
+       &exynos5_clk_aclk_300_gscl,
        &exynos5_clk_aclk_66_pre,
        &exynos5_clk_aclk_66,
        &exynos5_clk_dout_mmc0,
-- 
1.7.0.4

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