ARM: shmobile: r8a7740: add CEU clock support

It is required from sh_mobile_ceu_camera driver.
This patch is based on v1.0 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c
index b095343..ce0930a 100644 (file)
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -43,6 +43,8 @@
 /* CPG registers */
 #define FRQCRA         0xe6150000
 #define FRQCRB         0xe6150004
+#define VCLKCR1                0xE6150008
+#define VCLKCR2                0xE615000c
 #define FRQCRC         0xe61500e0
 #define PLLC01CR       0xe6150028
 
@@ -317,6 +319,7 @@ static struct clk_div4_table div4_table = {
 /* DIV6 reparent */
 enum {
        DIV6_HDMI,
+       DIV6_VCLK1, DIV6_VCLK2,
        DIV6_REPARENT_NR,
 };
 
@@ -326,9 +329,21 @@ static struct clk *hdmi_parent[] = {
        [2] = &dv_clk
 };
 
+static struct clk *vclk_parents[8] = {
+       [0] = &pllc1_div2_clk,
+       [2] = &dv_clk,
+       [3] = &usb24s_clk,
+       [4] = &extal1_div2_clk,
+       [5] = &extalr_clk,
+};
+
 static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = {
        [DIV6_HDMI] = SH_CLK_DIV6_EXT(HDMICKCR, 0,
                                      hdmi_parent, ARRAY_SIZE(hdmi_parent), 6, 2),
+       [DIV6_VCLK1] = SH_CLK_DIV6_EXT(VCLKCR1, 0,
+                                      vclk_parents, ARRAY_SIZE(vclk_parents), 12, 3),
+       [DIV6_VCLK2] = SH_CLK_DIV6_EXT(VCLKCR2, 0,
+                                      vclk_parents, ARRAY_SIZE(vclk_parents), 12, 3),
 };
 
 /* HDMI1/2 clock */
@@ -417,7 +432,7 @@ static struct clk div6_clks[DIV6_NR] = {
 };
 
 enum {
-       MSTP125,
+       MSTP128, MSTP127, MSTP125,
        MSTP116, MSTP111, MSTP100, MSTP117,
 
        MSTP230,
@@ -434,6 +449,8 @@ enum {
 };
 
 static struct clk mstp_clks[MSTP_NR] = {
+       [MSTP128] = SH_CLK_MSTP32(&div4_clks[DIV4_S],   SMSTPCR1, 28, 0), /* CEU21 */
+       [MSTP127] = SH_CLK_MSTP32(&div4_clks[DIV4_S],   SMSTPCR1, 27, 0), /* CEU20 */
        [MSTP125] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR1, 25, 0), /* TMU0 */
        [MSTP117] = SH_CLK_MSTP32(&div4_clks[DIV4_B],   SMSTPCR1, 17, 0), /* LCDC1 */
        [MSTP116] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR1, 16, 0), /* IIC0 */
@@ -484,6 +501,8 @@ static struct clk_lookup lookups[] = {
        CLKDEV_CON_ID("usb24s",                 &usb24s_clk),
        CLKDEV_CON_ID("hdmi1",                  &hdmi1_clk),
        CLKDEV_CON_ID("hdmi2",                  &hdmi2_clk),
+       CLKDEV_CON_ID("video1",                 &div6_reparent_clks[DIV6_VCLK1]),
+       CLKDEV_CON_ID("video2",                 &div6_reparent_clks[DIV6_VCLK2]),
 
        /* DIV4 clocks */
        CLKDEV_CON_ID("i_clk",                  &div4_clks[DIV4_I]),
@@ -506,6 +525,8 @@ static struct clk_lookup lookups[] = {
        CLKDEV_DEV_ID("i2c-sh_mobile.0",        &mstp_clks[MSTP116]),
        CLKDEV_DEV_ID("sh_mobile_lcdc_fb.1",    &mstp_clks[MSTP117]),
        CLKDEV_DEV_ID("sh_tmu.0",               &mstp_clks[MSTP125]),
+       CLKDEV_DEV_ID("sh_mobile_ceu.0",        &mstp_clks[MSTP127]),
+       CLKDEV_DEV_ID("sh_mobile_ceu.1",        &mstp_clks[MSTP128]),
 
        CLKDEV_DEV_ID("sh-sci.4",               &mstp_clks[MSTP200]),
        CLKDEV_DEV_ID("sh-sci.3",               &mstp_clks[MSTP201]),