[PATCH v3 04/14] drm/sun4i: hdmi: Use more portable I/O helpers

Samuel Holland
2022-04-24T16:26:48Z

readsb/writesb are unavailable on some architectures. In preparation for
removing the Kconfig architecture dependency, switch to the equivalent
but more portable ioread/write8_rep helpers.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
---

(no changes since v2)

Changes in v2:
- New patch: I/O helper portability

drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c
index b66fa27fe6ea..c7d7e9fff91c 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c
@@ -56,9 +56,9 @@ static int fifo_transfer(struct sun4i_hdmi *hdmi, u8 *buf, int len, bool read)
return -EIO;

if (read)
- readsb(hdmi->base + hdmi->variant->ddc_fifo_reg, buf, len);
+ ioread8_rep(hdmi->base + hdmi->variant->ddc_fifo_reg, buf, len);
else
- writesb(hdmi->base + hdmi->variant->ddc_fifo_reg, buf, len);
+ iowrite8_rep(hdmi->base + hdmi->variant->ddc_fifo_reg, buf, len);

/* Clear FIFO request bit by forcing a write to that bit */
regmap_field_force_write(hdmi->field_ddc_int_status,
--
2.35.1