ARM: SAMSUNG: register uart clocks to clock lookup list

Samsung uart driver lookups the clock using the connection id 'clk_uart_baud'.
The uart clocks for all Samsung platforms are reorganized to register them
with the lookup name as required by the uart driver.

Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

2 files changed, 67 insertions, 41 deletions

diff --git a/arch/arm/mach-exynos/clock.c b/arch/arm/mach-exynos/clock.c
index 2894f0adef5..fe1851914da 100644
--- a/arch/arm/mach-exynos/clock.c
+++ b/arch/arm/mach-exynos/clock.c
@@ -1009,46 +1009,6 @@ static struct clksrc_clk clk_dout_mmc4 = {
 
 static struct clksrc_clk clksrcs[] = {
 	{
-		.clk	= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.0",
-			.enable		= exynos4_clksrc_mask_peril0_ctrl,
-			.ctrlbit	= (1 << 0),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 0, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 0, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.1",
-			.enable		= exynos4_clksrc_mask_peril0_ctrl,
-			.ctrlbit	= (1 << 4),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 4, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 4, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.2",
-			.enable		= exynos4_clksrc_mask_peril0_ctrl,
-			.ctrlbit	= (1 << 8),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 8, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 8, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.3",
-			.enable		= exynos4_clksrc_mask_peril0_ctrl,
-			.ctrlbit	= (1 << 12),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 12, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 12, .size = 4 },
-	}, {
 		.clk		= {
 			.name		= "sclk_pwm",
 			.enable		= exynos4_clksrc_mask_peril0_ctrl,
@@ -1237,6 +1197,54 @@ static struct clksrc_clk clksrcs[] = {
 	}
 };
 
+static struct clksrc_clk clk_sclk_uart0 = {
+	.clk	= {
+		.name		= "uclk1",
+		.devname	= "exynos4210-uart.0",
+		.enable		= exynos4_clksrc_mask_peril0_ctrl,
+		.ctrlbit	= (1 << 0),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 0, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 0, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uart1 = {
+	.clk		= {
+		.name		= "uclk1",
+		.devname	= "exynos4210-uart.1",
+		.enable		= exynos4_clksrc_mask_peril0_ctrl,
+		.ctrlbit	= (1 << 4),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 4, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 4, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uart2 = {
+	.clk		= {
+		.name		= "uclk1",
+		.devname	= "exynos4210-uart.2",
+		.enable		= exynos4_clksrc_mask_peril0_ctrl,
+		.ctrlbit	= (1 << 8),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 8, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 8, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uart3 = {
+	.clk		= {
+		.name		= "uclk1",
+		.devname	= "exynos4210-uart.3",
+		.enable		= exynos4_clksrc_mask_peril0_ctrl,
+		.ctrlbit	= (1 << 12),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 12, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 12, .size = 4 },
+};
+
 /* Clock initialization code */
 static struct clksrc_clk *sysclks[] = {
 	&clk_mout_apll,
@@ -1271,6 +1279,20 @@ static struct clksrc_clk *sysclks[] = {
 	&clk_mout_mfc1,
 };
 
+static struct clksrc_clk *clksrc_cdev[] = {
+	&clk_sclk_uart0,
+	&clk_sclk_uart1,
+	&clk_sclk_uart2,
+	&clk_sclk_uart3,
+};
+
+static struct clk_lookup exynos4_clk_lookup[] = {
+	CLKDEV_INIT("exynos4210-uart.0", "clk_uart_baud0", &clk_sclk_uart0.clk),
+	CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &clk_sclk_uart1.clk),
+	CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &clk_sclk_uart2.clk),
+	CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &clk_sclk_uart3.clk),
+};
+
 static int xtal_rate;
 
 static unsigned long exynos4_fout_apll_get_rate(struct clk *clk)
@@ -1478,11 +1500,15 @@ void __init exynos4_register_clocks(void)
 	for (ptr = 0; ptr < ARRAY_SIZE(sclk_tv); ptr++)
 		s3c_register_clksrc(sclk_tv[ptr], 1);
 
+	for (ptr = 0; ptr < ARRAY_SIZE(clksrc_cdev); ptr++)
+		s3c_register_clksrc(clksrc_cdev[ptr], 1);
+
 	s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
 	s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
 
 	s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 	s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+	clkdev_add_table(exynos4_clk_lookup, ARRAY_SIZE(exynos4_clk_lookup));
 
 	register_syscore_ops(&exynos4_clock_syscore_ops);
 	s3c24xx_register_clock(&dummy_apb_pclk);
diff --git a/arch/arm/mach-exynos/init.c b/arch/arm/mach-exynos/init.c
index 3c9590b1703..5b35978029b 100644
--- a/arch/arm/mach-exynos/init.c
+++ b/arch/arm/mach-exynos/init.c
@@ -23,5 +23,5 @@ void __init exynos4_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 	for (ucnt = 0; ucnt < no; ucnt++, tcfg++)
 		tcfg->has_fracval = 1;
 
-	s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);
+	s3c24xx_init_uartdevs("exynos4210-uart", s5p_uart_resources, cfg, no);
 }