Commit 60da7020 authored by Heiner Kallweit's avatar Heiner Kallweit Committed by Greg Kroah-Hartman
Browse files

staging: fbtft: add helper fbtft_write_buf_dc 



Factor out setting DC GPIO and writing buffer content to helper
fbtft_write_buf_dc.

Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 82472b86

drivers/staging/fbtft/fbtft-core.c

+15 −0
Original line number Diff line number Diff line
@@ -43,6 +43,21 @@ static unsigned long debug; 
module_param(debug, ulong, 0000);

MODULE_PARM_DESC(debug, "override device debug level");



int fbtft_write_buf_dc(struct fbtft_par *par, void *buf, size_t len, int dc)

{

	int ret;



	if (gpio_is_valid(par->gpio.dc))

		gpio_set_value(par->gpio.dc, dc);



	ret = par->fbtftops.write(par, buf, len);

	if (ret < 0)

		dev_err(par->info->device,

			"write() failed and returned %d\n", ret);

	return ret;

}

EXPORT_SYMBOL(fbtft_write_buf_dc);



void fbtft_dbg_hex(const struct device *dev, int groupsize,

		   void *buf, size_t len, const char *fmt, ...)

{

drivers/staging/fbtft/fbtft.h

+1 −0
Original line number Diff line number Diff line
@@ -248,6 +248,7 @@ struct fbtft_par { 
	par->fbtftops.write_register(par, NUMARGS(__VA_ARGS__), __VA_ARGS__)



/* fbtft-core.c */

int fbtft_write_buf_dc(struct fbtft_par *par, void *buf, size_t len, int dc);

void fbtft_dbg_hex(const struct device *dev, int groupsize,

		   void *buf, size_t len, const char *fmt, ...);

struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,

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