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ARM: shmobile: r8a73a4: add thermal driver support

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You can get current thermal by
> cat /sys/class/thermal/thermal_zone?/temp

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Kuninori Morimoto 2013-03-25 23:18:15 -07:00 committed by Simon Horman
parent 6722f6cb76
commit c91cf2fad0
3 changed files with 34 additions and 1 deletions
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7
arch/arm/boot/dts/r8a73a4.dtsi
View file

@ -84,4 +84,11 @@
<0 56 4>, <0 57 4>;
};
thermal@e61f0000 {
compatible = "renesas,rcar-thermal";
reg = <0xe61f0000 0x14>, <0xe61f0100 0x38>,
<0xe61f0200 0x38>, <0xe61f0300 0x38>;
interrupt-parent = <&gic>;
interrupts = <0 69 4>;
};
};

13
arch/arm/mach-shmobile/clock-r8a73a4.c
View file

@ -29,6 +29,7 @@
#define MPCKCR 0xe6150080
#define SMSTPCR2 0xe6150138
#define SMSTPCR5 0xe6150144
static struct clk_mapping cpg_mapping = {
.phys = CPG_BASE,
@ -56,7 +57,12 @@ static struct clk *main_clks[] = {
&extal2_clk,
};
enum { MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, MSTP_NR };
enum {
MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203,
MSTP522,
MSTP_NR
};
static struct clk mstp_clks[MSTP_NR] = {
[MSTP204] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 4, 0), /* SCIFA0 */
[MSTP203] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 3, 0), /* SCIFA1 */
@ -64,6 +70,7 @@ static struct clk mstp_clks[MSTP_NR] = {
[MSTP207] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 7, 0), /* SCIFB1 */
[MSTP216] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 16, 0), /* SCIFB2 */
[MSTP217] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 17, 0), /* SCIFB3 */
[MSTP522] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR5, 22, 0), /* Thermal */
};
static struct clk_lookup lookups[] = {
@ -73,6 +80,10 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP207]),
CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP216]),
CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP217]),
CLKDEV_DEV_ID("rcar_thermal", &mstp_clks[MSTP522]),
/* for DT */
CLKDEV_DEV_ID("e61f0000.thermal", &mstp_clks[MSTP522]),
};
void __init r8a73a4_clock_init(void)

15
arch/arm/mach-shmobile/setup-r8a73a4.c
View file

@ -155,6 +155,20 @@ static const struct resource irqc1_resources[] = {
&irqc##idx##_data, \
sizeof(struct renesas_irqc_config))
/* Thermal0 -> Thermal2 */
static const struct resource thermal0_resources[] = {
DEFINE_RES_MEM(0xe61f0000, 0x14),
DEFINE_RES_MEM(0xe61f0100, 0x38),
DEFINE_RES_MEM(0xe61f0200, 0x38),
DEFINE_RES_MEM(0xe61f0300, 0x38),
DEFINE_RES_IRQ(gic_spi(69)),
};
#define r8a73a4_register_thermal() \
platform_device_register_simple("rcar_thermal", -1, \
thermal0_resources, \
ARRAY_SIZE(thermal0_resources))
void __init r8a73a4_add_standard_devices(void)
{
r8a73a4_register_scif(SCIFA0);
@ -165,6 +179,7 @@ void __init r8a73a4_add_standard_devices(void)
r8a73a4_register_scif(SCIFB3);
r8a73a4_register_irqc(0);
r8a73a4_register_irqc(1);
r8a73a4_register_thermal();
}
#ifdef CONFIG_USE_OF