The era of hand-rolled HIWORD_UPDATE macros is over, at least for those
drivers that use constant masks.
Switch to the new FIELD_PREP_WM16 macro in hw_bitfield.h, which has
error checking. Instead of redefining the driver's HIWORD_UPDATE macro
in this case, replace the two only instances of it with the new macro,
as I could test that they result in an equivalent value.
Acked-by: Ulf Hansson <ulf.hans...@linaro.org>
Signed-off-by: Nicolas Frattaroli <nicolas.frattar...@collabora.com>
---
drivers/mmc/host/dw_mmc-rockchip.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc-rockchip.c
b/drivers/mmc/host/dw_mmc-rockchip.c
index
d2aec6cf9773dcb057d1bf3785ace586a7955f12..82dd906bb002cb8327691ac1ef4818561c9ac7e6
100644
--- a/drivers/mmc/host/dw_mmc-rockchip.c
+++ b/drivers/mmc/host/dw_mmc-rockchip.c
@@ -6,6 +6,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
+#include <linux/hw_bitfield.h>
#include <linux/mmc/host.h>
#include <linux/of_address.h>
#include <linux/mmc/slot-gpio.h>
@@ -24,8 +25,6 @@
#define ROCKCHIP_MMC_DELAYNUM_OFFSET 2
#define ROCKCHIP_MMC_DELAYNUM_MASK (0xff << ROCKCHIP_MMC_DELAYNUM_OFFSET)
#define ROCKCHIP_MMC_DELAY_ELEMENT_PSEC 60
-#define HIWORD_UPDATE(val, mask, shift) \
- ((val) << (shift) | (mask) << ((shift) + 16))
static const unsigned int freqs[] = { 100000, 200000, 300000, 400000 };
@@ -148,9 +147,11 @@ static int rockchip_mmc_set_internal_phase(struct dw_mci
*host, bool sample, int
raw_value |= nineties;
if (sample)
- mci_writel(host, TIMING_CON1, HIWORD_UPDATE(raw_value, 0x07ff,
1));
+ mci_writel(host, TIMING_CON1,
+ FIELD_PREP_WM16(GENMASK(11, 1), raw_value));
else
- mci_writel(host, TIMING_CON0, HIWORD_UPDATE(raw_value, 0x07ff,
1));
+ mci_writel(host, TIMING_CON0,
+ FIELD_PREP_WM16(GENMASK(11, 1), raw_value));
dev_dbg(host->dev, "set %s_phase(%d) delay_nums=%u actual_degrees=%d\n",
sample ? "sample" : "drv", degrees, delay_num,
--
2.51.0
