drm/tinydrm: Move tinydrm_machine_little_endian()

The tinydrm helper is going away so move it into the only user mipi-dbi.

Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190719155916.62465-9-noralf@tronnes.org

diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
index 6a8f2d66377fd9fda1d9bdab2c93cdf49b24d32d..73db287e5c52937cfaa5af6198053fe88fadaf4a 100644 (file)
--- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
+++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
@@ -628,6 +628,15 @@ u32 mipi_dbi_spi_cmd_max_speed(struct spi_device *spi, size_t len)
 }
 EXPORT_SYMBOL(mipi_dbi_spi_cmd_max_speed);
 
+static bool mipi_dbi_machine_little_endian(void)
+{
+#if defined(__LITTLE_ENDIAN)
+       return true;
+#else
+       return false;
+#endif
+}
+
 /*
  * MIPI DBI Type C Option 1
  *
@@ -650,7 +659,7 @@ static int mipi_dbi_spi1e_transfer(struct mipi_dbi *mipi, int dc,
                                   const void *buf, size_t len,
                                   unsigned int bpw)
 {
-       bool swap_bytes = (bpw == 16 && tinydrm_machine_little_endian());
+       bool swap_bytes = (bpw == 16 && mipi_dbi_machine_little_endian());
        size_t chunk, max_chunk = mipi->tx_buf9_len;
        struct spi_device *spi = mipi->spi;
        struct spi_transfer tr = {
@@ -799,7 +808,7 @@ static int mipi_dbi_spi1_transfer(struct mipi_dbi *mipi, int dc,
                size_t chunk = min(len, max_chunk);
                unsigned int i;
 
-               if (bpw == 16 && tinydrm_machine_little_endian()) {
+               if (bpw == 16 && mipi_dbi_machine_little_endian()) {
                        for (i = 0; i < (chunk * 2); i += 2) {
                                dst16[i]     = *src16 >> 8;
                                dst16[i + 1] = *src16++ & 0xFF;
@@ -991,7 +1000,7 @@ int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *mipi,
        if (dc) {
                mipi->command = mipi_dbi_typec3_command;
                mipi->dc = dc;
-               if (tinydrm_machine_little_endian() && !spi_is_bpw_supported(spi, 16))
+               if (mipi_dbi_machine_little_endian() && !spi_is_bpw_supported(spi, 16))
                        mipi->swap_bytes = true;
        } else {
                mipi->command = mipi_dbi_typec1_command;

diff --git a/include/drm/tinydrm/tinydrm-helpers.h b/include/drm/tinydrm/tinydrm-helpers.h
index 8c5d20efeaa18111c061fa9e35d1d4251d7df7cc..0e7470771c5e23692db41523001d6111b07ed558 100644 (file)
--- a/include/drm/tinydrm/tinydrm-helpers.h
+++ b/include/drm/tinydrm/tinydrm-helpers.h
@@ -15,21 +15,6 @@ struct drm_simple_display_pipe;
 struct drm_simple_display_pipe_funcs;
 struct device;
 
-/**
- * tinydrm_machine_little_endian - Machine is little endian
- *
- * Returns:
- * true if *defined(__LITTLE_ENDIAN)*, false otherwise
- */
-static inline bool tinydrm_machine_little_endian(void)
-{
-#if defined(__LITTLE_ENDIAN)
-       return true;
-#else
-       return false;
-#endif
-}
-
 int tinydrm_display_pipe_init(struct drm_device *drm,
                              struct drm_simple_display_pipe *pipe,
                              const struct drm_simple_display_pipe_funcs *funcs,