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staging: fbtft: fb_sh1106: use new helper helper fbtft_write_buf_dc

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Make use of new helper fbtft_write_buf_dc.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heiner Kallweit 2017-03-02 22:20:42 +01:00 committed by Greg Kroah-Hartman
parent e70065fdc1
commit 74ec0a0e37
1 changed files with 4 additions and 13 deletions
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17
drivers/staging/fbtft/fb_sh1106.c
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@ -140,13 +140,9 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
buf[x] |= BIT(i);
/* Write data */
gpio_set_value(par->gpio.dc, 1);
ret = par->fbtftops.write(par, buf, xres);
if (ret < 0) {
dev_err(par->info->device,
"write failed and returned: %d\n", ret);
ret = fbtft_write_buf_dc(par, buf, xres, 1);
if (ret < 0)
return ret;
}
}
return 0;
@ -155,7 +151,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
static void write_register(struct fbtft_par *par, int len, ...)
{
va_list args;
int i, ret;
int i;
va_start(args, len);
@ -163,12 +159,7 @@ static void write_register(struct fbtft_par *par, int len, ...)
par->buf[i] = va_arg(args, unsigned int);
/* keep DC low for all command bytes to transfer */
gpio_set_value(par->gpio.dc, 0);
ret = par->fbtftops.write(par, par->buf, len);
if (ret < 0)
dev_err(par->info->device,
"write() failed and returned %d\n", ret);
fbtft_write_buf_dc(par, par->buf, len, 0);
va_end(args);
}