ARM: mach-shmobile: Kota2 TPU LED platform data

This patch updates the Kota2 board support code to
use the recently merged TPU LED driver whenever
possible.

The sh73a0 SoC has 5 TPU hardware blocks each with
4 timer channels which in theory allows a total of
20 LEDs to be controlled by "leds-renesas-tpu"
driver instances. The Kota2 board has 4 LEDs connected
to GPIO pins that also come with TPU pin functions, so
this patch ties up these 4 LEDS and leaves the remaining
3 LEDS for the GPIO based LED driver.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

2 files changed, 134 insertions, 4 deletions

diff --git a/arch/arm/mach-shmobile/board-kota2.c b/arch/arm/mach-shmobile/board-kota2.c
index 53e5e45521aa..f44150b5ae46 100644
--- a/arch/arm/mach-shmobile/board-kota2.c
+++ b/arch/arm/mach-shmobile/board-kota2.c
@@ -33,6 +33,7 @@
 #include <linux/input/sh_keysc.h>
 #include <linux/gpio_keys.h>
 #include <linux/leds.h>
+#include <linux/platform_data/leds-renesas-tpu.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/sh_mmcif.h>
 #include <linux/mfd/tmio.h>
@@ -157,10 +158,6 @@ static struct platform_device gpio_keys_device = {
 #define GPIO_LED(n, g) { .name = n, .gpio = g }
 
 static struct gpio_led gpio_leds[] = {
-        GPIO_LED("V2513", GPIO_PORT153), /* PORT153 [TPU1T02] -> V2513 */
-        GPIO_LED("V2514", GPIO_PORT199), /* PORT199 [TPU4TO1] -> V2514 */
-        GPIO_LED("V2515", GPIO_PORT197), /* PORT197 [TPU2TO1] -> V2515 */
-        GPIO_LED("KEYLED", GPIO_PORT163), /* PORT163 [TPU3TO0] -> KEYLED */
         GPIO_LED("G", GPIO_PORT20), /* PORT20 [GPO0] -> LED7 -> "G" */
         GPIO_LED("H", GPIO_PORT21), /* PORT21 [GPO1] -> LED8 -> "H" */
         GPIO_LED("J", GPIO_PORT22), /* PORT22 [GPO2] -> LED9 -> "J" */
@@ -179,6 +176,119 @@ static struct platform_device gpio_leds_device = {
         },
 };
 
+/* TPU LED */
+static struct led_renesas_tpu_config led_renesas_tpu12_pdata = {
+        .name           = "V2513",
+        .pin_gpio_fn    = GPIO_FN_TPU1TO2,
+        .pin_gpio       = GPIO_PORT153,
+        .channel_offset = 0x90,
+        .timer_bit = 2,
+        .max_brightness = 1000,
+};
+
+static struct resource tpu12_resources[] = {
+        [0] = {
+                .name   = "TPU12",
+                .start  = 0xe6610090,
+                .end    = 0xe66100b5,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device leds_tpu12_device = {
+        .name = "leds-renesas-tpu",
+        .id = 12,
+        .dev = {
+                .platform_data  = &led_renesas_tpu12_pdata,
+        },
+        .num_resources  = ARRAY_SIZE(tpu12_resources),
+        .resource       = tpu12_resources,
+};
+
+static struct led_renesas_tpu_config led_renesas_tpu41_pdata = {
+        .name           = "V2514",
+        .pin_gpio_fn    = GPIO_FN_TPU4TO1,
+        .pin_gpio       = GPIO_PORT199,
+        .channel_offset = 0x50,
+        .timer_bit = 1,
+        .max_brightness = 1000,
+};
+
+static struct resource tpu41_resources[] = {
+        [0] = {
+                .name   = "TPU41",
+                .start  = 0xe6640050,
+                .end    = 0xe6640075,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device leds_tpu41_device = {
+        .name = "leds-renesas-tpu",
+        .id = 41,
+        .dev = {
+                .platform_data  = &led_renesas_tpu41_pdata,
+        },
+        .num_resources  = ARRAY_SIZE(tpu41_resources),
+        .resource       = tpu41_resources,
+};
+
+static struct led_renesas_tpu_config led_renesas_tpu21_pdata = {
+        .name           = "V2515",
+        .pin_gpio_fn    = GPIO_FN_TPU2TO1,
+        .pin_gpio       = GPIO_PORT197,
+        .channel_offset = 0x50,
+        .timer_bit = 1,
+        .max_brightness = 1000,
+};
+
+static struct resource tpu21_resources[] = {
+        [0] = {
+                .name   = "TPU21",
+                .start  = 0xe6620050,
+                .end    = 0xe6620075,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device leds_tpu21_device = {
+        .name = "leds-renesas-tpu",
+        .id = 21,
+        .dev = {
+                .platform_data  = &led_renesas_tpu21_pdata,
+        },
+        .num_resources  = ARRAY_SIZE(tpu21_resources),
+        .resource       = tpu21_resources,
+};
+
+static struct led_renesas_tpu_config led_renesas_tpu30_pdata = {
+        .name           = "KEYLED",
+        .pin_gpio_fn    = GPIO_FN_TPU3TO0,
+        .pin_gpio       = GPIO_PORT163,
+        .channel_offset = 0x10,
+        .timer_bit = 0,
+        .max_brightness = 1000,
+};
+
+static struct resource tpu30_resources[] = {
+        [0] = {
+                .name   = "TPU30",
+                .start  = 0xe6630010,
+                .end    = 0xe6630035,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device leds_tpu30_device = {
+        .name = "leds-renesas-tpu",
+        .id = 30,
+        .dev = {
+                .platform_data  = &led_renesas_tpu30_pdata,
+        },
+        .num_resources  = ARRAY_SIZE(tpu30_resources),
+        .resource       = tpu30_resources,
+};
+
 /* MMCIF */
 static struct resource mmcif_resources[] = {
         [0] = {
@@ -291,6 +401,10 @@ static struct platform_device *kota2_devices[] __initdata = {
         &keysc_device,
         &gpio_keys_device,
         &gpio_leds_device,
+        &leds_tpu12_device,
+        &leds_tpu41_device,
+        &leds_tpu21_device,
+        &leds_tpu30_device,
         &mmcif_device,
         &sdhi0_device,
         &sdhi1_device,
diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c
index 61a846bb30f2..a56d6c63b71e 100644
--- a/arch/arm/mach-shmobile/clock-sh73a0.c
+++ b/arch/arm/mach-shmobile/clock-sh73a0.c
@@ -113,6 +113,12 @@ static struct clk main_clk = {
         .ops            = &main_clk_ops,
 };
 
+/* Divide Main clock by two */
+static struct clk main_div2_clk = {
+        .ops            = &div2_clk_ops,
+        .parent         = &main_clk,
+};
+
 /* PLL0, PLL1, PLL2, PLL3 */
 static unsigned long pll_recalc(struct clk *clk)
 {
@@ -181,6 +187,7 @@ static struct clk *main_clks[] = {
         &extal1_div2_clk,
         &extal2_div2_clk,
         &main_clk,
+        &main_div2_clk,
         &pll0_clk,
         &pll1_clk,
         &pll2_clk,
@@ -268,6 +275,7 @@ enum { MSTP001,
         MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
         MSTP331, MSTP329, MSTP325, MSTP323, MSTP318,
         MSTP314, MSTP313, MSTP312, MSTP311,
+        MSTP303, MSTP302, MSTP301, MSTP300,
         MSTP411, MSTP410, MSTP403,
         MSTP_NR };
 
@@ -301,6 +309,10 @@ static struct clk mstp_clks[MSTP_NR] = {
         [MSTP313] = MSTP(&div6_clks[DIV6_SDHI1], SMSTPCR3, 13, 0), /* SDHI1 */
         [MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMCIF0 */
         [MSTP311] = MSTP(&div6_clks[DIV6_SDHI2], SMSTPCR3, 11, 0), /* SDHI2 */
+        [MSTP303] = MSTP(&main_div2_clk, SMSTPCR3, 3, 0), /* TPU1 */
+        [MSTP302] = MSTP(&main_div2_clk, SMSTPCR3, 2, 0), /* TPU2 */
+        [MSTP301] = MSTP(&main_div2_clk, SMSTPCR3, 1, 0), /* TPU3 */
+        [MSTP300] = MSTP(&main_div2_clk, SMSTPCR3, 0, 0), /* TPU4 */
         [MSTP411] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 11, 0), /* IIC3 */
         [MSTP410] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 10, 0), /* IIC4 */
         [MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */
@@ -350,6 +362,10 @@ static struct clk_lookup lookups[] = {
         CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */
         CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */
         CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP311]), /* SDHI2 */
+        CLKDEV_DEV_ID("leds-renesas-tpu.12", &mstp_clks[MSTP303]), /* TPU1 */
+        CLKDEV_DEV_ID("leds-renesas-tpu.21", &mstp_clks[MSTP302]), /* TPU2 */
+        CLKDEV_DEV_ID("leds-renesas-tpu.30", &mstp_clks[MSTP301]), /* TPU3 */
+        CLKDEV_DEV_ID("leds-renesas-tpu.41", &mstp_clks[MSTP300]), /* TPU4 */
         CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* I2C3 */
         CLKDEV_DEV_ID("i2c-sh_mobile.4", &mstp_clks[MSTP410]), /* I2C4 */
         CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */