Merge branch 'rmobile/core' into rmobile-fixes-for-linus

5 files changed, 153 insertions, 3 deletions

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 54b479c..51dcd59 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -116,4 +116,6 @@ endmenu
 config SH_CLK_CPG
 	bool
 
+source "drivers/sh/Kconfig"
+
 endif
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index 46ca4d4..32d9e28 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -565,12 +565,50 @@ static struct platform_device *qhd_devices[] __initdata = {
 
 /* FSI */
 #define IRQ_FSI		evt2irq(0x1840)
+
+static int fsi_set_rate(int is_porta, int rate)
+{
+	struct clk *fsib_clk;
+	struct clk *fdiv_clk = &sh7372_fsidivb_clk;
+	int ret;
+
+	/* set_rate is not needed if port A */
+	if (is_porta)
+		return 0;
+
+	fsib_clk = clk_get(NULL, "fsib_clk");
+	if (IS_ERR(fsib_clk))
+		return -EINVAL;
+
+	switch (rate) {
+	case 48000:
+		clk_set_rate(fsib_clk, clk_round_rate(fsib_clk, 85428000));
+		clk_set_rate(fdiv_clk, clk_round_rate(fdiv_clk, 12204000));
+		ret = SH_FSI_ACKMD_256 | SH_FSI_BPFMD_64;
+		break;
+	default:
+		pr_err("unsupported rate in FSI2 port B\n");
+		ret = -EINVAL;
+		break;
+	}
+
+	clk_put(fsib_clk);
+
+	return ret;
+}
+
 static struct sh_fsi_platform_info fsi_info = {
 	.porta_flags = SH_FSI_BRS_INV |
 		       SH_FSI_OUT_SLAVE_MODE |
 		       SH_FSI_IN_SLAVE_MODE |
 		       SH_FSI_OFMT(PCM) |
 		       SH_FSI_IFMT(PCM),
+
+	.portb_flags = SH_FSI_BRS_INV |
+		       SH_FSI_BRM_INV |
+		       SH_FSI_LRS_INV |
+		       SH_FSI_OFMT(SPDIF),
+	.set_rate = fsi_set_rate,
 };
 
 static struct resource fsi_resources[] = {
@@ -634,6 +672,7 @@ static struct platform_device lcdc1_device = {
 static struct sh_mobile_hdmi_info hdmi_info = {
 	.lcd_chan = &sh_mobile_lcdc1_info.ch[0],
 	.lcd_dev = &lcdc1_device.dev,
+	.flags = HDMI_SND_SRC_SPDIF,
 };
 
 static struct resource hdmi_resources[] = {
@@ -992,6 +1031,7 @@ static void __init ap4evb_map_io(void)
 
 #define GPIO_PORT9CR	0xE6051009
 #define GPIO_PORT10CR	0xE605100A
+#define USCCR1		0xE6058144
 static void __init ap4evb_init(void)
 {
 	u32 srcr4;
@@ -1062,7 +1102,7 @@ static void __init ap4evb_init(void)
 	/* setup USB phy */
 	__raw_writew(0x8a0a, 0xE6058130);	/* USBCR2 */
 
-	/* enable FSI2 */
+	/* enable FSI2 port A (ak4643) */
 	gpio_request(GPIO_FN_FSIAIBT,	NULL);
 	gpio_request(GPIO_FN_FSIAILR,	NULL);
 	gpio_request(GPIO_FN_FSIAISLD,	NULL);
@@ -1079,6 +1119,10 @@ static void __init ap4evb_init(void)
 	gpio_request(GPIO_PORT41, NULL);
 	gpio_direction_input(GPIO_PORT41);
 
+	/* setup FSI2 port B (HDMI) */
+	gpio_request(GPIO_FN_FSIBCK, NULL);
+	__raw_writew(__raw_readw(USCCR1) & ~(1 << 6), USCCR1); /* use SPDIF */
+
 	/* set SPU2 clock to 119.6 MHz */
 	clk = clk_get(NULL, "spu_clk");
 	if (!IS_ERR(clk)) {
diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c
index 8565aef..7db31e6 100644
--- a/arch/arm/mach-shmobile/clock-sh7372.c
+++ b/arch/arm/mach-shmobile/clock-sh7372.c
@@ -50,6 +50,9 @@
 #define SMSTPCR3	0xe615013c
 #define SMSTPCR4	0xe6150140
 
+#define FSIDIVA		0xFE1F8000
+#define FSIDIVB		0xFE1F8008
+
 /* Platforms must set frequency on their DV_CLKI pin */
 struct clk sh7372_dv_clki_clk = {
 };
@@ -288,6 +291,7 @@ struct clk sh7372_pllc2_clk = {
 	.ops		= &pllc2_clk_ops,
 	.parent		= &extal1_div2_clk,
 	.freq_table	= pllc2_freq_table,
+	.nr_freqs	= ARRAY_SIZE(pllc2_freq_table) - 1,
 	.parent_table	= pllc2_parent,
 	.parent_num	= ARRAY_SIZE(pllc2_parent),
 };
@@ -417,6 +421,101 @@ static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = {
 				      fsibckcr_parent, ARRAY_SIZE(fsibckcr_parent), 6, 2),
 };
 
+/* FSI DIV */
+static unsigned long fsidiv_recalc(struct clk *clk)
+{
+	unsigned long value;
+
+	value = __raw_readl(clk->mapping->base);
+
+	if ((value & 0x3) != 0x3)
+		return 0;
+
+	value >>= 16;
+	if (value < 2)
+		return 0;
+
+	return clk->parent->rate / value;
+}
+
+static long fsidiv_round_rate(struct clk *clk, unsigned long rate)
+{
+	return clk_rate_div_range_round(clk, 2, 0xffff, rate);
+}
+
+static void fsidiv_disable(struct clk *clk)
+{
+	__raw_writel(0, clk->mapping->base);
+}
+
+static int fsidiv_enable(struct clk *clk)
+{
+	unsigned long value;
+
+	value  = __raw_readl(clk->mapping->base) >> 16;
+	if (value < 2) {
+		fsidiv_disable(clk);
+		return -ENOENT;
+	}
+
+	__raw_writel((value << 16) | 0x3, clk->mapping->base);
+
+	return 0;
+}
+
+static int fsidiv_set_rate(struct clk *clk,
+			   unsigned long rate, int algo_id)
+{
+	int idx;
+
+	if (clk->parent->rate == rate) {
+		fsidiv_disable(clk);
+		return 0;
+	}
+
+	idx = (clk->parent->rate / rate) & 0xffff;
+	if (idx < 2)
+		return -ENOENT;
+
+	__raw_writel(idx << 16, clk->mapping->base);
+	return fsidiv_enable(clk);
+}
+
+static struct clk_ops fsidiv_clk_ops = {
+	.recalc		= fsidiv_recalc,
+	.round_rate	= fsidiv_round_rate,
+	.set_rate	= fsidiv_set_rate,
+	.enable		= fsidiv_enable,
+	.disable	= fsidiv_disable,
+};
+
+static struct clk_mapping sh7372_fsidiva_clk_mapping = {
+	.phys	= FSIDIVA,
+	.len	= 8,
+};
+
+struct clk sh7372_fsidiva_clk = {
+	.ops		= &fsidiv_clk_ops,
+	.parent		= &div6_reparent_clks[DIV6_FSIA], /* late install */
+	.mapping	= &sh7372_fsidiva_clk_mapping,
+};
+
+static struct clk_mapping sh7372_fsidivb_clk_mapping = {
+	.phys	= FSIDIVB,
+	.len	= 8,
+};
+
+struct clk sh7372_fsidivb_clk = {
+	.ops		= &fsidiv_clk_ops,
+	.parent		= &div6_reparent_clks[DIV6_FSIB],  /* late install */
+	.mapping	= &sh7372_fsidivb_clk_mapping,
+};
+
+static struct clk *late_main_clks[] = {
+	&sh7372_fsidiva_clk,
+	&sh7372_fsidivb_clk,
+};
+
 enum { MSTP001,
        MSTP131, MSTP130,
        MSTP129, MSTP128, MSTP127, MSTP126, MSTP125,
@@ -585,6 +684,9 @@ void __init sh7372_clock_init(void)
 	if (!ret)
 		ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
 
+	for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
+		ret = clk_register(late_main_clks[k]);
+
 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
 	if (!ret)
diff --git a/arch/arm/mach-shmobile/include/mach/gpio.h b/arch/arm/mach-shmobile/include/mach/gpio.h
index 5bc6bd4..2b1bb9e 100644
--- a/arch/arm/mach-shmobile/include/mach/gpio.h
+++ b/arch/arm/mach-shmobile/include/mach/gpio.h
@@ -35,12 +35,12 @@ static inline int gpio_cansleep(unsigned gpio)
 
 static inline int gpio_to_irq(unsigned gpio)
 {
-	return -ENOSYS;
+	return __gpio_to_irq(gpio);
 }
 
 static inline int irq_to_gpio(unsigned int irq)
 {
-	return -EINVAL;
+	return -ENOSYS;
 }
 
 #endif /* CONFIG_GPIOLIB */
diff --git a/arch/arm/mach-shmobile/include/mach/sh7372.h b/arch/arm/mach-shmobile/include/mach/sh7372.h
index 147775a..e4f9004 100644
--- a/arch/arm/mach-shmobile/include/mach/sh7372.h
+++ b/arch/arm/mach-shmobile/include/mach/sh7372.h
@@ -464,5 +464,7 @@ extern struct clk sh7372_dv_clki_div2_clk;
 extern struct clk sh7372_pllc2_clk;
 extern struct clk sh7372_fsiack_clk;
 extern struct clk sh7372_fsibck_clk;
+extern struct clk sh7372_fsidiva_clk;
+extern struct clk sh7372_fsidivb_clk;
 
 #endif /* __ASM_SH7372_H__ */