Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
iio: adc: exynos_adc: Drop S3C2410 support
Samsung S3C24xx family of SoCs was removed from the Linux kernel in the
commit 61b7f8920b17 ("ARM: s3c: remove all s3c24xx support"), in January
2023. There are no in-kernel users of its compatibles.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250830-s3c-cleanup-adc-v2-1-4f8299343d32@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by
Krzysztof Kozlowski
and committed by
Jonathan Cameron
117b6c08
16647eff
+1
-74
+1
-74
drivers/iio/adc/exynos_adc.c
+1
-74
drivers/iio/adc/exynos_adc.c
···
44
44
#define ADC_V1_MUX(x) ((x) + 0x1c)
45
45
#define ADC_V1_CLRINTPNDNUP(x) ((x) + 0x20)
46
46
47
-
/* S3C2410 ADC registers definitions */
48
-
#define ADC_S3C2410_MUX(x) ((x) + 0x18)
49
-
50
47
/* Future ADC_V2 registers definitions */
51
48
#define ADC_V2_CON1(x) ((x) + 0x00)
52
49
#define ADC_V2_CON2(x) ((x) + 0x04)
···
58
61
#define ADC_V1_CON_PRSCLV(x) (((x) & 0xFF) << 6)
59
62
#define ADC_V1_CON_STANDBY (1u << 2)
60
63
61
-
/* Bit definitions for S3C2410 ADC */
64
+
/* Bit definitions for S3C2410 / S3C6410 ADC */
62
65
#define ADC_S3C2410_CON_SELMUX(x) (((x) & 7) << 3)
63
-
#define ADC_S3C2410_DATX_MASK 0x3FF
64
-
#define ADC_S3C2416_CON_RES_SEL (1u << 3)
65
66
66
67
/* touch screen always uses channel 0 */
67
68
#define ADC_S3C2410_MUX_TS 0
···
302
307
.start_conv = exynos_adc_v1_start_conv,
303
308
};
304
309
305
-
static void exynos_adc_s3c2416_start_conv(struct exynos_adc *info,
306
-
unsigned long addr)
307
-
{
308
-
u32 con1;
309
-
310
-
/* Enable 12 bit ADC resolution */
311
-
con1 = readl(ADC_V1_CON(info->regs));
312
-
con1 |= ADC_S3C2416_CON_RES_SEL;
313
-
writel(con1, ADC_V1_CON(info->regs));
314
-
315
-
/* Select channel for S3C2416 */
316
-
writel(addr, ADC_S3C2410_MUX(info->regs));
317
-
318
-
con1 = readl(ADC_V1_CON(info->regs));
319
-
writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));
320
-
}
321
-
322
-
static struct exynos_adc_data const exynos_adc_s3c2416_data = {
323
-
.num_channels = MAX_ADC_V1_CHANNELS,
324
-
.mask = ADC_DATX_MASK, /* 12 bit ADC resolution */
325
-
326
-
.init_hw = exynos_adc_v1_init_hw,
327
-
.exit_hw = exynos_adc_v1_exit_hw,
328
-
.start_conv = exynos_adc_s3c2416_start_conv,
329
-
};
330
-
331
-
static void exynos_adc_s3c2443_start_conv(struct exynos_adc *info,
332
-
unsigned long addr)
333
-
{
334
-
u32 con1;
335
-
336
-
/* Select channel for S3C2433 */
337
-
writel(addr, ADC_S3C2410_MUX(info->regs));
338
-
339
-
con1 = readl(ADC_V1_CON(info->regs));
340
-
writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));
341
-
}
342
-
343
-
static struct exynos_adc_data const exynos_adc_s3c2443_data = {
344
-
.num_channels = MAX_ADC_V1_CHANNELS,
345
-
.mask = ADC_S3C2410_DATX_MASK, /* 10 bit ADC resolution */
346
-
347
-
.init_hw = exynos_adc_v1_init_hw,
348
-
.exit_hw = exynos_adc_v1_exit_hw,
349
-
.start_conv = exynos_adc_s3c2443_start_conv,
350
-
};
351
-
352
310
static void exynos_adc_s3c64xx_start_conv(struct exynos_adc *info,
353
311
unsigned long addr)
354
312
{
···
312
364
con1 |= ADC_S3C2410_CON_SELMUX(addr);
313
365
writel(con1 | ADC_CON_EN_START, ADC_V1_CON(info->regs));
314
366
}
315
-
316
-
static struct exynos_adc_data const exynos_adc_s3c24xx_data = {
317
-
.num_channels = MAX_ADC_V1_CHANNELS,
318
-
.mask = ADC_S3C2410_DATX_MASK, /* 10 bit ADC resolution */
319
-
320
-
.init_hw = exynos_adc_v1_init_hw,
321
-
.exit_hw = exynos_adc_v1_exit_hw,
322
-
.start_conv = exynos_adc_s3c64xx_start_conv,
323
-
};
324
367
325
368
static struct exynos_adc_data const exynos_adc_s3c64xx_data = {
326
369
.num_channels = MAX_ADC_V1_CHANNELS,
···
425
486
426
487
static const struct of_device_id exynos_adc_match[] = {
427
488
{
428
-
.compatible = "samsung,s3c2410-adc",
429
-
.data = &exynos_adc_s3c24xx_data,
430
-
}, {
431
-
.compatible = "samsung,s3c2416-adc",
432
-
.data = &exynos_adc_s3c2416_data,
433
-
}, {
434
-
.compatible = "samsung,s3c2440-adc",
435
-
.data = &exynos_adc_s3c24xx_data,
436
-
}, {
437
-
.compatible = "samsung,s3c2443-adc",
438
-
.data = &exynos_adc_s3c2443_data,
439
-
}, {
440
489
.compatible = "samsung,s3c6410-adc",
441
490
.data = &exynos_adc_s3c64xx_data,
442
491
}, {