On 09/23/13 15:36, Juergen Beisert wrote:
> In order to support i.MX23 and i.MX28 within one driver we need to separate
> the
> register definitions which differ in both SoC variants.
>
> Signed-off-by: Juergen Beisert <j...@pengutronix.de>
> CC: linux-arm-ker...@lists.infradead.org
> CC: linux-in...@vger.kernel.org
> CC: de...@driverdev.osuosl.org
> CC: Marek Vasut <ma...@denx.de>
> CC: Fabio Estevam <fabio.este...@freescale.com>
> CC: Jonathan Cameron <ji...@cam.ac.uk>
Applied to the togreg branch of iio.git
Thanks
> ---
> drivers/staging/iio/adc/mxs-lradc.c | 61
> ++++++++++++++++++++-----------------
> 1 file changed, 33 insertions(+), 28 deletions(-)
>
> diff --git a/drivers/staging/iio/adc/mxs-lradc.c
> b/drivers/staging/iio/adc/mxs-lradc.c
> index 3abc91f..f2fb10a 100644
> --- a/drivers/staging/iio/adc/mxs-lradc.c
> +++ b/drivers/staging/iio/adc/mxs-lradc.c
> @@ -182,24 +182,29 @@ struct mxs_lradc {
> };
>
> #define LRADC_CTRL0 0x00
> -#define LRADC_CTRL0_TOUCH_DETECT_ENABLE (1 << 23)
> -#define LRADC_CTRL0_TOUCH_SCREEN_TYPE (1 << 22)
> -#define LRADC_CTRL0_YNNSW /* YM */ (1 << 21)
> -#define LRADC_CTRL0_YPNSW /* YP */ (1 << 20)
> -#define LRADC_CTRL0_YPPSW /* YP */ (1 << 19)
> -#define LRADC_CTRL0_XNNSW /* XM */ (1 << 18)
> -#define LRADC_CTRL0_XNPSW /* XM */ (1 << 17)
> -#define LRADC_CTRL0_XPPSW /* XP */ (1 << 16)
> -#define LRADC_CTRL0_PLATE_MASK (0x3f << 16)
> +# define LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE (1 << 23)
> +# define LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE (1 << 22)
> +# define LRADC_CTRL0_MX28_YNNSW /* YM */ (1 << 21)
> +# define LRADC_CTRL0_MX28_YPNSW /* YP */ (1 << 20)
> +# define LRADC_CTRL0_MX28_YPPSW /* YP */ (1 << 19)
> +# define LRADC_CTRL0_MX28_XNNSW /* XM */ (1 << 18)
> +# define LRADC_CTRL0_MX28_XNPSW /* XM */ (1 << 17)
> +# define LRADC_CTRL0_MX28_XPPSW /* XP */ (1 << 16)
> +
> +# define LRADC_CTRL0_MX28_PLATE_MASK \
> + (LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE | \
> + LRADC_CTRL0_MX28_YNNSW | LRADC_CTRL0_MX28_YPNSW | \
> + LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW | \
> + LRADC_CTRL0_MX28_XNPSW | LRADC_CTRL0_MX28_XPPSW)
>
> #define LRADC_CTRL1 0x10
> #define LRADC_CTRL1_TOUCH_DETECT_IRQ_EN (1 << 24)
> #define LRADC_CTRL1_LRADC_IRQ_EN(n) (1 << ((n) + 16))
> -#define LRADC_CTRL1_LRADC_IRQ_EN_MASK (0x1fff << 16)
> +#define LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK (0x1fff << 16)
> #define LRADC_CTRL1_LRADC_IRQ_EN_OFFSET 16
> #define LRADC_CTRL1_TOUCH_DETECT_IRQ (1 << 8)
> #define LRADC_CTRL1_LRADC_IRQ(n) (1 << (n))
> -#define LRADC_CTRL1_LRADC_IRQ_MASK 0x1fff
> +#define LRADC_CTRL1_MX28_LRADC_IRQ_MASK 0x1fff
> #define LRADC_CTRL1_LRADC_IRQ_OFFSET 0
>
> #define LRADC_CTRL2 0x20
> @@ -267,7 +272,7 @@ static int mxs_lradc_read_raw(struct iio_dev *iio_dev,
> * Virtual channel 0 is always used here as the others are always not
> * used if doing raw sampling.
> */
> - writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
> + writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
> lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
> writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
>
> @@ -322,9 +327,9 @@ static int mxs_lradc_ts_touched(struct mxs_lradc *lradc)
> uint32_t reg;
>
> /* Enable touch detection. */
> - writel(LRADC_CTRL0_PLATE_MASK,
> + writel(LRADC_CTRL0_MX28_PLATE_MASK,
> lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
> - writel(LRADC_CTRL0_TOUCH_DETECT_ENABLE,
> + writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
> lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
>
> msleep(LRADC_TS_SAMPLE_DELAY_MS);
> @@ -370,21 +375,21 @@ static int32_t mxs_lradc_ts_sample(struct mxs_lradc
> *lradc,
> */
> switch (plate) {
> case LRADC_SAMPLE_X:
> - ctrl0 = LRADC_CTRL0_XPPSW | LRADC_CTRL0_XNNSW;
> + ctrl0 = LRADC_CTRL0_MX28_XPPSW | LRADC_CTRL0_MX28_XNNSW;
> chan = 3;
> break;
> case LRADC_SAMPLE_Y:
> - ctrl0 = LRADC_CTRL0_YPPSW | LRADC_CTRL0_YNNSW;
> + ctrl0 = LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_YNNSW;
> chan = 4;
> break;
> case LRADC_SAMPLE_PRESSURE:
> - ctrl0 = LRADC_CTRL0_YPPSW | LRADC_CTRL0_XNNSW;
> + ctrl0 = LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW;
> chan = 5;
> break;
> }
>
> if (change) {
> - writel(LRADC_CTRL0_PLATE_MASK,
> + writel(LRADC_CTRL0_MX28_PLATE_MASK,
> lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
> writel(ctrl0, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
>
> @@ -445,7 +450,7 @@ static void mxs_lradc_ts_work(struct work_struct *ts_work)
>
> while (mxs_lradc_ts_touched(lradc)) {
> /* Disable touch detector so we can sample the touchscreen. */
> - writel(LRADC_CTRL0_TOUCH_DETECT_ENABLE,
> + writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
> lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
>
> if (likely(valid)) {
> @@ -494,7 +499,7 @@ static int mxs_lradc_ts_open(struct input_dev *dev)
> lradc->stop_touchscreen = false;
>
> /* Enable the touch-detect circuitry. */
> - writel(LRADC_CTRL0_TOUCH_DETECT_ENABLE,
> + writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
> lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
>
> /* Enable the touch-detect IRQ. */
> @@ -520,7 +525,7 @@ static void mxs_lradc_ts_close(struct input_dev *dev)
> lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
>
> /* Power-down touchscreen touch-detect circuitry. */
> - writel(LRADC_CTRL0_TOUCH_DETECT_ENABLE,
> + writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
> lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
> }
>
> @@ -584,7 +589,7 @@ static irqreturn_t mxs_lradc_handle_irq(int irq, void
> *data)
> LRADC_CTRL1_TOUCH_DETECT_IRQ_EN |
> LRADC_CTRL1_TOUCH_DETECT_IRQ;
>
> - if (!(reg & LRADC_CTRL1_LRADC_IRQ_MASK))
> + if (!(reg & LRADC_CTRL1_MX28_LRADC_IRQ_MASK))
> return IRQ_NONE;
>
> /*
> @@ -604,7 +609,7 @@ static irqreturn_t mxs_lradc_handle_irq(int irq, void
> *data)
> else if (reg & LRADC_CTRL1_LRADC_IRQ(0))
> complete(&lradc->completion);
>
> - writel(reg & LRADC_CTRL1_LRADC_IRQ_MASK,
> + writel(reg & LRADC_CTRL1_MX28_LRADC_IRQ_MASK,
> lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
>
> return IRQ_HANDLED;
> @@ -725,7 +730,7 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
> if (ret < 0)
> goto err_buf;
>
> - writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
> + writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
> lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
> writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
>
> @@ -766,7 +771,7 @@ static int mxs_lradc_buffer_postdisable(struct iio_dev
> *iio)
> lradc->base + LRADC_DELAY(0) + STMP_OFFSET_REG_CLR);
>
> writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
> - writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
> + writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
> lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
>
> kfree(lradc->buffer);
> @@ -870,11 +875,11 @@ static int mxs_lradc_hw_init(struct mxs_lradc *lradc)
> writel(0, lradc->base + LRADC_DELAY(3));
>
> /* Configure the touchscreen type */
> - writel(LRADC_CTRL0_TOUCH_SCREEN_TYPE,
> + writel(LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
> lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
>
> if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE) {
> - writel(LRADC_CTRL0_TOUCH_SCREEN_TYPE,
> + writel(LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
> lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
> }
>
> @@ -888,7 +893,7 @@ static void mxs_lradc_hw_stop(struct mxs_lradc *lradc)
> {
> int i;
>
> - writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
> + writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
> lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
>
> for (i = 0; i < LRADC_MAX_DELAY_CHANS; i++)
>
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