diff options
Diffstat (limited to 'drivers/staging/fbtft/fbtft-core.c')
| -rw-r--r-- | drivers/staging/fbtft/fbtft-core.c | 34 |
1 files changed, 8 insertions, 26 deletions
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c index bbe89c9c4fb9..7c8af29cdb75 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c @@ -32,7 +32,6 @@ #include <linux/backlight.h> #include <linux/platform_device.h> #include <linux/spinlock.h> -#include <linux/dma-mapping.h> #include <linux/of.h> #include <linux/of_gpio.h> #include <video/mipi_display.h> @@ -41,15 +40,9 @@ #include "internal.h" static unsigned long debug; -module_param(debug, ulong, 0); +module_param(debug, ulong, 0000); MODULE_PARM_DESC(debug, "override device debug level"); -#ifdef CONFIG_HAS_DMA -static bool dma = true; -module_param(dma, bool, 0); -MODULE_PARM_DESC(dma, "Use DMA buffer"); -#endif - void fbtft_dbg_hex(const struct device *dev, int groupsize, void *buf, size_t len, const char *fmt, ...) { @@ -337,10 +330,10 @@ static void fbtft_reset(struct fbtft_par *par) if (par->gpio.reset == -1) return; fbtft_par_dbg(DEBUG_RESET, par, "%s()\n", __func__); - gpio_set_value(par->gpio.reset, 0); - udelay(20); - gpio_set_value(par->gpio.reset, 1); - mdelay(120); + gpio_set_value_cansleep(par->gpio.reset, 0); + usleep_range(20, 40); + gpio_set_value_cansleep(par->gpio.reset, 1); + msleep(120); } static void fbtft_update_display(struct fbtft_par *par, unsigned int start_line, @@ -668,7 +661,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display, int vmem_size, i; s16 *init_sequence = display->init_sequence; char *gamma = display->gamma; - unsigned long *gamma_curves = NULL; + u32 *gamma_curves = NULL; /* sanity check */ if (display->gamma_num * display->gamma_len > @@ -836,17 +829,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display, #endif if (txbuflen > 0) { -#ifdef CONFIG_HAS_DMA - if (dma) { - dev->coherent_dma_mask = ~0; - txbuf = dmam_alloc_coherent(dev, txbuflen, - &par->txbuf.dma, GFP_DMA); - } else -#endif - { - txbuf = devm_kzalloc(par->info->device, - txbuflen, GFP_KERNEL); - } + txbuf = devm_kzalloc(par->info->device, txbuflen, GFP_KERNEL); if (!txbuf) goto alloc_fail; par->txbuf.buf = txbuf; @@ -975,8 +958,7 @@ int fbtft_register_framebuffer(struct fb_info *fb_info) fbtft_sysfs_init(par); if (par->txbuf.buf) - sprintf(text1, ", %zu KiB %sbuffer memory", - par->txbuf.len >> 10, par->txbuf.dma ? "DMA " : ""); + sprintf(text1, ", %zu KiB buffer memory", par->txbuf.len >> 10); if (spi) sprintf(text2, ", spi%d.%d at %d MHz", spi->master->bus_num, spi->chip_select, spi->max_speed_hz / 1000000); |