From cb18dfa930acaced019bfb8b9f1b5be0b66ded96 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Fri, 28 Apr 2023 14:24:36 +0200 Subject: hid/hid-picolcd_fb: Use struct fb_info.screen_buffer Use info->screen_buffer when reading and writing framebuffers in system memory. It's the correct pointer for this address space. The struct fb_info has a union to store the framebuffer memory. This can either be info->screen_base if the framebuffer is stored in I/O memory, or info->screen_buffer if the framebuffer is stored in system memory. As the driver operates on the latter address space, it is wrong to use .screen_base and .screen_buffer must be used instead. This also gets rid of casting needed due to not using the correct data type. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20230428122452.4856-4-tzimmermann@suse.de --- drivers/hid/hid-picolcd_fb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/hid') diff --git a/drivers/hid/hid-picolcd_fb.c b/drivers/hid/hid-picolcd_fb.c index de61c08fabea..dabcd054dad9 100644 --- a/drivers/hid/hid-picolcd_fb.c +++ b/drivers/hid/hid-picolcd_fb.c @@ -221,7 +221,7 @@ int picolcd_fb_reset(struct picolcd_data *data, int clear) return 0; } -/* Update fb_vbitmap from the screen_base and send changed tiles to device */ +/* Update fb_vbitmap from the screen_buffer and send changed tiles to device */ static void picolcd_fb_update(struct fb_info *info) { int chip, tile, n; @@ -541,7 +541,7 @@ int picolcd_init_framebuffer(struct picolcd_data *data) dev_err(dev, "can't get a free page for framebuffer\n"); goto err_nomem; } - info->screen_base = (char __force __iomem *)fbdata->bitmap; + info->screen_buffer = fbdata->bitmap; info->fix.smem_start = (unsigned long)fbdata->bitmap; memset(fbdata->vbitmap, 0xff, PICOLCDFB_SIZE); data->fb_info = info; -- cgit v1.2.3