[PATCH v4 3/9] usb: isp1760: use relaxed primitives

Rui Miguel Silva
2021-05-13T08:47:41Z

Use io relaxed access memory primitives to satisfy strict type
checking (__force).

This will fix some existing sparse warnings:
sparse: warning: cast to restricted __le32

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
---
drivers/usb/isp1760/isp1760-hcd.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c
index 20d142140574..2cc0555e029d 100644
--- a/drivers/usb/isp1760/isp1760-hcd.c
+++ b/drivers/usb/isp1760/isp1760-hcd.c
@@ -246,7 +246,7 @@ static void bank_reads8(void __iomem *src_base, u32 src_offset, u32 bank_addr,

if (src_offset < PAYLOAD_OFFSET) {
while (bytes >= 4) {
- *dst = le32_to_cpu(__raw_readl(src));
+ *dst = readl_relaxed(src);
bytes -= 4;
src++;
dst++;
@@ -267,7 +267,7 @@ static void bank_reads8(void __iomem *src_base, u32 src_offset, u32 bank_addr,
* allocated.
*/
if (src_offset < PAYLOAD_OFFSET)
- val = le32_to_cpu(__raw_readl(src));
+ val = readl_relaxed(src);
else
val = __raw_readl(src);

@@ -301,7 +301,7 @@ static void mem_writes8(void __iomem *dst_base, u32 dst_offset,

if (dst_offset < PAYLOAD_OFFSET) {
while (bytes >= 4) {
- __raw_writel(cpu_to_le32(*src), dst);
+ writel_relaxed(*src, dst);
bytes -= 4;
src++;
dst++;
@@ -322,7 +322,7 @@ static void mem_writes8(void __iomem *dst_base, u32 dst_offset,
*/

if (dst_offset < PAYLOAD_OFFSET)
- __raw_writel(cpu_to_le32(*src), dst);
+ writel_relaxed(*src, dst);
else
__raw_writel(*src, dst);
}
--
2.31.1