media: vim2m: Fix RGB 565 BE/LE support

The support for those two formats are archtecture-dependent.
Use the endianness to CPU macros to do it right.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/platform/vim2m.c b/drivers/media/platform/vim2m.c
index dd47821..d8763a8 100644 (file)
--- a/drivers/media/platform/vim2m.c
+++ b/drivers/media/platform/vim2m.c
@@ -302,7 +302,7 @@ static void copy_two_pixels(struct vim2m_q_data *q_data_in,
        switch (in->fourcc) {
        case V4L2_PIX_FMT_RGB565: /* rrrrrggg gggbbbbb */
                for (i = 0; i < 2; i++) {
-                       u16 pix = *(u16 *)(src[i]);
+                       u16 pix = le16_to_cpu(*(__le16 *)(src[i]));
 
                        *r++ = (u8)(((pix & 0xf800) >> 11) << 3) | 0x07;
                        *g++ = (u8)((((pix & 0x07e0) >> 5)) << 2) | 0x03;
@@ -311,12 +311,11 @@ static void copy_two_pixels(struct vim2m_q_data *q_data_in,
                break;
        case V4L2_PIX_FMT_RGB565X: /* gggbbbbb rrrrrggg */
                for (i = 0; i < 2; i++) {
-                       u16 pix = *(u16 *)(src[i]);
+                       u16 pix = be16_to_cpu(*(__be16 *)(src[i]));
 
-                       *r++ = (u8)(((0x00f8 & pix) >> 3) << 3) | 0x07;
-                       *g++ = (u8)(((pix & 0x7) << 2) |
-                                   ((pix & 0xe000) >> 5)) | 0x03;
-                       *b++ = (u8)(((pix & 0x1f00) >> 8) << 3) | 0x07;
+                       *r++ = (u8)(((pix & 0xf800) >> 11) << 3) | 0x07;
+                       *g++ = (u8)((((pix & 0x07e0) >> 5)) << 2) | 0x03;
+                       *b++ = (u8)((pix & 0x1f) << 3) | 0x07;
                }
                break;
        default:
@@ -345,21 +344,26 @@ static void copy_two_pixels(struct vim2m_q_data *q_data_in,
        switch (out->fourcc) {
        case V4L2_PIX_FMT_RGB565: /* rrrrrggg gggbbbbb */
                for (i = 0; i < 2; i++) {
-                       u16 *pix = (u16 *)*dst;
+                       u16 pix;
+                       __le16 *dst_pix = (__le16 *)*dst;
 
-                       *pix = ((*r << 8) & 0xf800) | ((*g << 3) & 0x07e0) |
-                              (*b >> 3);
+                       pix = ((*r << 8) & 0xf800) | ((*g << 3) & 0x07e0) |
+                             (*b >> 3);
+
+                       *dst_pix = cpu_to_le16(pix);
 
                        *dst += 2;
                }
                return;
        case V4L2_PIX_FMT_RGB565X: /* gggbbbbb rrrrrggg */
                for (i = 0; i < 2; i++) {
-                       u16 *pix = (u16 *)*dst;
-                       u8 green = *g++ >> 2;
+                       u16 pix;
+                       __be16 *dst_pix = (__be16 *)*dst;
+
+                       pix = ((*r << 8) & 0xf800) | ((*g << 3) & 0x07e0) |
+                             (*b >> 3);
 
-                       *pix = ((green << 8) & 0xe000) | (green & 0x07) |
-                              ((*b++ << 5) & 0x1f00) | ((*r++ & 0xf8));
+                       *dst_pix = cpu_to_be16(pix);
 
                        *dst += 2;
                }