video: fbdev: sis: Fix set but not used warnings in sis_main

Fix warnings by dropping unused variable and the
unused assignments.

v2:
  - Update subject (Lee)

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Lee Jones <lee.jones@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201128224114.1033617-11-sam@ravnborg.org

diff --git a/drivers/video/fbdev/sis/sis_main.c b/drivers/video/fbdev/sis/sis_main.c
index 03c736f..266a558 100644 (file)
--- a/drivers/video/fbdev/sis/sis_main.c
+++ b/drivers/video/fbdev/sis/sis_main.c
@@ -5029,7 +5029,6 @@ static void sisfb_post_xgi_ddr2(struct sis_video_info *ivideo, u8 regb)
        static const u8 cs168[8] = {
                0x48, 0x78, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00
        };
-       u8 reg;
        u8 v1;
        u8 v2;
        u8 v3;
@@ -5037,9 +5036,9 @@ static void sisfb_post_xgi_ddr2(struct sis_video_info *ivideo, u8 regb)
        SiS_SetReg(SISCR, 0xb0, 0x80); /* DDR2 dual frequency mode */
        SiS_SetReg(SISCR, 0x82, 0x77);
        SiS_SetReg(SISCR, 0x86, 0x00);
-       reg = SiS_GetReg(SISCR, 0x86);
+       SiS_GetReg(SISCR, 0x86);
        SiS_SetReg(SISCR, 0x86, 0x88);
-       reg = SiS_GetReg(SISCR, 0x86);
+       SiS_GetReg(SISCR, 0x86);
        v1 = cs168[regb]; v2 = cs160[regb]; v3 = cs158[regb];
        if (ivideo->haveXGIROM) {
                v1 = bios[regb + 0x168];
@@ -5049,9 +5048,9 @@ static void sisfb_post_xgi_ddr2(struct sis_video_info *ivideo, u8 regb)
        SiS_SetReg(SISCR, 0x86, v1);
        SiS_SetReg(SISCR, 0x82, 0x77);
        SiS_SetReg(SISCR, 0x85, 0x00);
-       reg = SiS_GetReg(SISCR, 0x85);
+       SiS_GetReg(SISCR, 0x85);
        SiS_SetReg(SISCR, 0x85, 0x88);
-       reg = SiS_GetReg(SISCR, 0x85);
+       SiS_GetReg(SISCR, 0x85);
        SiS_SetReg(SISCR, 0x85, v2);
        SiS_SetReg(SISCR, 0x82, v3);
        SiS_SetReg(SISCR, 0x98, 0x01);