From: Lars Svensson <lars1.svensson@sonymobile.com>
To: thomas.petazzoni@free-electrons.com, noralf@tronnes.org,
plagnioj@jcrosoft.com, tomi.valkeinen@ti.com
Cc: linux-fbdev@vger.kernel.org, gregkh@linuxfoundation.org,
devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
dan.carpenter@oracle.com,
Lars Svensson <lars1.svensson@sonymobile.com>
Subject: [PATCH v3 2/3] staging: fbtft: use alternate screen pointer
Date: Wed, 07 Oct 2015 07:20:13 +0000 [thread overview]
Message-ID: <1444202414-21271-2-git-send-email-lars1.svensson@sonymobile.com> (raw)
In-Reply-To: <1444202414-21271-1-git-send-email-lars1.svensson@sonymobile.com>
Member screen_base in struct fb_info is declared with __iomem
qualifier causing sparse warnings when used as a regular ponter.
To avoid the warnings, instead use alternate non-__iomem pointer,
screen_buffer, troughout the driver.
Signed-off-by: Lars Svensson <lars1.svensson@sonymobile.com>
---
drivers/staging/fbtft/fb_agm1264k-fl.c | 2 +-
drivers/staging/fbtft/fb_pcd8544.c | 2 +-
drivers/staging/fbtft/fb_ra8875.c | 2 +-
drivers/staging/fbtft/fb_ssd1306.c | 2 +-
drivers/staging/fbtft/fb_tls8204.c | 2 +-
drivers/staging/fbtft/fb_uc1611.c | 2 +-
drivers/staging/fbtft/fb_uc1701.c | 2 +-
drivers/staging/fbtft/fb_watterott.c | 4 ++--
drivers/staging/fbtft/fbtft-bus.c | 6 +++---
drivers/staging/fbtft/fbtft-core.c | 4 ++--
10 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c
index 94dd49c..5af372b 100644
--- a/drivers/staging/fbtft/fb_agm1264k-fl.c
+++ b/drivers/staging/fbtft/fb_agm1264k-fl.c
@@ -273,7 +273,7 @@ construct_line_bitmap(struct fbtft_par *par, u8 *dest, signed short *src,
static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
{
- u16 *vmem16 = (u16 *)par->info->screen_base;
+ u16 *vmem16 = (u16 *)par->info->screen_buffer;
u8 *buf = par->txbuf.buf;
int x, y;
int ret = 0;
diff --git a/drivers/staging/fbtft/fb_pcd8544.c b/drivers/staging/fbtft/fb_pcd8544.c
index 15da0ec..27d6681 100644
--- a/drivers/staging/fbtft/fb_pcd8544.c
+++ b/drivers/staging/fbtft/fb_pcd8544.c
@@ -122,7 +122,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
{
- u16 *vmem16 = (u16 *)par->info->screen_base;
+ u16 *vmem16 = (u16 *)par->info->screen_buffer;
u8 *buf = par->txbuf.buf;
int x, y, i;
int ret = 0;
diff --git a/drivers/staging/fbtft/fb_ra8875.c b/drivers/staging/fbtft/fb_ra8875.c
index 54bc566..e8b2178 100644
--- a/drivers/staging/fbtft/fb_ra8875.c
+++ b/drivers/staging/fbtft/fb_ra8875.c
@@ -288,7 +288,7 @@ static int write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
__func__, offset, len);
remain = len / 2;
- vmem16 = (u16 *)(par->info->screen_base + offset);
+ vmem16 = (u16 *)(par->info->screen_buffer + offset);
tx_array_size = par->txbuf.len / 2;
txbuf16 = (u16 *)(par->txbuf.buf + 1);
tx_array_size -= 2;
diff --git a/drivers/staging/fbtft/fb_ssd1306.c b/drivers/staging/fbtft/fb_ssd1306.c
index 15ee44d..913b0f7 100644
--- a/drivers/staging/fbtft/fb_ssd1306.c
+++ b/drivers/staging/fbtft/fb_ssd1306.c
@@ -172,7 +172,7 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
{
- u16 *vmem16 = (u16 *)par->info->screen_base;
+ u16 *vmem16 = (u16 *)par->info->screen_buffer;
u8 *buf = par->txbuf.buf;
int x, y, i;
int ret = 0;
diff --git a/drivers/staging/fbtft/fb_tls8204.c b/drivers/staging/fbtft/fb_tls8204.c
index 3253a25..b66dc7f 100644
--- a/drivers/staging/fbtft/fb_tls8204.c
+++ b/drivers/staging/fbtft/fb_tls8204.c
@@ -104,7 +104,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
{
- u16 *vmem16 = (u16 *)par->info->screen_base;
+ u16 *vmem16 = (u16 *)par->info->screen_buffer;
int x, y, i;
int ret = 0;
diff --git a/drivers/staging/fbtft/fb_uc1611.c b/drivers/staging/fbtft/fb_uc1611.c
index 5cafa50..689a56a 100644
--- a/drivers/staging/fbtft/fb_uc1611.c
+++ b/drivers/staging/fbtft/fb_uc1611.c
@@ -229,7 +229,7 @@ static int set_var(struct fbtft_par *par)
static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
{
- u8 *vmem8 = (u8 *)(par->info->screen_base);
+ u8 *vmem8 = (u8 *)(par->info->screen_buffer);
u8 *buf8 = (u8 *)(par->txbuf.buf);
u16 *buf16 = (u16 *)(par->txbuf.buf);
int line_length = par->info->fix.line_length;
diff --git a/drivers/staging/fbtft/fb_uc1701.c b/drivers/staging/fbtft/fb_uc1701.c
index 26d669b..96b7298 100644
--- a/drivers/staging/fbtft/fb_uc1701.c
+++ b/drivers/staging/fbtft/fb_uc1701.c
@@ -150,7 +150,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
{
- u16 *vmem16 = (u16 *)par->info->screen_base;
+ u16 *vmem16 = (u16 *)par->info->screen_buffer;
u8 *buf = par->txbuf.buf;
int x, y, i;
int ret = 0;
diff --git a/drivers/staging/fbtft/fb_watterott.c b/drivers/staging/fbtft/fb_watterott.c
index 8eae6ef..ed88e2d 100644
--- a/drivers/staging/fbtft/fb_watterott.c
+++ b/drivers/staging/fbtft/fb_watterott.c
@@ -73,7 +73,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
{
unsigned start_line, end_line;
- u16 *vmem16 = (u16 *)(par->info->screen_base + offset);
+ u16 *vmem16 = (u16 *)(par->info->screen_buffer + offset);
u16 *pos = par->txbuf.buf + 1;
u16 *buf16 = par->txbuf.buf + 10;
int i, j;
@@ -112,7 +112,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
static int write_vmem_8bit(struct fbtft_par *par, size_t offset, size_t len)
{
unsigned start_line, end_line;
- u16 *vmem16 = (u16 *)(par->info->screen_base + offset);
+ u16 *vmem16 = (u16 *)(par->info->screen_buffer + offset);
u16 *pos = par->txbuf.buf + 1;
u8 *buf8 = par->txbuf.buf + 10;
int i, j;
diff --git a/drivers/staging/fbtft/fbtft-bus.c b/drivers/staging/fbtft/fbtft-bus.c
index 912c632..f5a36a4 100644
--- a/drivers/staging/fbtft/fbtft-bus.c
+++ b/drivers/staging/fbtft/fbtft-bus.c
@@ -142,7 +142,7 @@ int fbtft_write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
__func__, offset, len);
remain = len / 2;
- vmem16 = (u16 *)(par->info->screen_base + offset);
+ vmem16 = (u16 *)(par->info->screen_buffer + offset);
if (par->gpio.dc != -1)
gpio_set_value(par->gpio.dc, 1);
@@ -201,7 +201,7 @@ int fbtft_write_vmem16_bus9(struct fbtft_par *par, size_t offset, size_t len)
}
remain = len;
- vmem8 = par->info->screen_base + offset;
+ vmem8 = par->info->screen_buffer + offset;
tx_array_size = par->txbuf.len / 2;
@@ -245,7 +245,7 @@ int fbtft_write_vmem16_bus16(struct fbtft_par *par, size_t offset, size_t len)
fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s(offset=%zu, len=%zu)\n",
__func__, offset, len);
- vmem16 = (u16 *)(par->info->screen_base + offset);
+ vmem16 = (u16 *)(par->info->screen_buffer + offset);
if (par->gpio.dc != -1)
gpio_set_value(par->gpio.dc, 1);
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 7f5fa3d..a5fade2 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -779,7 +779,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
if (!info)
goto alloc_fail;
- info->screen_base = (u8 __force __iomem *)vmem;
+ info->screen_buffer = vmem;
info->fbops = fbops;
info->fbdefio = fbdefio;
@@ -919,7 +919,7 @@ EXPORT_SYMBOL(fbtft_framebuffer_alloc);
void fbtft_framebuffer_release(struct fb_info *info)
{
fb_deferred_io_cleanup(info);
- vfree(info->screen_base);
+ vfree(info->screen_buffer);
framebuffer_release(info);
}
EXPORT_SYMBOL(fbtft_framebuffer_release);
--
2.4.2
next prev parent reply other threads:[~2015-10-07 7:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-07 7:20 [PATCH v3 1/3] fb.h: Provide alternate screen_base pointer Lars Svensson
2015-10-07 7:20 ` Lars Svensson [this message]
2015-10-07 7:20 ` [PATCH v3 3/3] staging: fbtft: access screen buffer directly Lars Svensson
2015-10-07 7:42 ` [PATCH v3 1/3] fb.h: Provide alternate screen_base pointer Dan Carpenter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1444202414-21271-2-git-send-email-lars1.svensson@sonymobile.com \
--to=lars1.svensson@sonymobile.com \
--cc=dan.carpenter@oracle.com \
--cc=devel@driverdev.osuosl.org \
--cc=gregkh@linuxfoundation.org \
--cc=linux-fbdev@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=noralf@tronnes.org \
--cc=plagnioj@jcrosoft.com \
--cc=thomas.petazzoni@free-electrons.com \
--cc=tomi.valkeinen@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).