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| author | Heiko Stuebner <heiko@sntech.de> | 2011-10-12 16:34:12 +0400 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2011-10-14 10:15:18 +0400 |
| commit | 6247cea2b9c193a845a01381c36e18f11676fdfb (patch) | |
| tree | 2c1a398c0971f10fbb3a76741e18b14408df128d /arch/arm/plat-samsung/adc.c | |
| parent | f8c414b516e17328bb1ab359b273c76a2e665b68 (diff) | |
| download | linux-6247cea2b9c193a845a01381c36e18f11676fdfb.tar.xz | |
ARM: SAMSUNG: Add support s3c2443-adc for S3C2443
The S3C2443-adc is 10 bit wide and has its mux-select
in an extra register at base+0x18
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-samsung/adc.c')
| -rw-r--r-- | arch/arm/plat-samsung/adc.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c index 7821055a5046..8d8c4cc023db 100644 --- a/arch/arm/plat-samsung/adc.c +++ b/arch/arm/plat-samsung/adc.c @@ -41,6 +41,7 @@ enum s3c_cpu_type { TYPE_ADCV1, /* S3C24XX */ + TYPE_ADCV11, /* S3C2443 */ TYPE_ADCV2, /* S3C64XX, S5P64X0, S5PC100 */ TYPE_ADCV3, /* S5PV210, S5PC110, EXYNOS4210 */ }; @@ -106,6 +107,9 @@ static inline void s3c_adc_select(struct adc_device *adc, if (!client->is_ts) { if (cpu == TYPE_ADCV3) writel(client->channel & 0xf, adc->regs + S5P_ADCMUX); + else if (cpu == TYPE_ADCV11) + writel(client->channel & 0xf, + adc->regs + S3C2443_ADCMUX); else con |= S3C2410_ADCCON_SELMUX(client->channel); } @@ -294,13 +298,13 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw) client->nr_samples--; - if (cpu != TYPE_ADCV1) { + if (cpu == TYPE_ADCV1 || cpu == TYPE_ADCV11) { + data0 &= 0x3ff; + data1 &= 0x3ff; + } else { /* S3C64XX/S5P ADC resolution is 12-bit */ data0 &= 0xfff; data1 &= 0xfff; - } else { - data0 &= 0x3ff; - data1 &= 0x3ff; } if (client->convert_cb) @@ -321,7 +325,7 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw) } exit: - if (cpu != TYPE_ADCV1) { + if (cpu == TYPE_ADCV2 || cpu == TYPE_ADCV3) { /* Clear ADC interrupt */ writel(0, adc->regs + S3C64XX_ADCCLRINT); } @@ -493,6 +497,9 @@ static struct platform_device_id s3c_adc_driver_ids[] = { .name = "s3c24xx-adc", .driver_data = TYPE_ADCV1, }, { + .name = "s3c2443-adc", + .driver_data = TYPE_ADCV11, + }, { .name = "s3c64xx-adc", .driver_data = TYPE_ADCV2, }, { |