staging: sm750fb: fix CamelCase variable naming

Replace CamelCase variable 'Bpp' with lowercase 'bpp' to fix
checkpatch warnings about improper variable naming convention.

Signed-off-by: Ignacio Pena <ignacio.pena87@gmail.com>
Link: https://lore.kernel.org/r/20250716181718.82227-1-ignacio.pena87@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: ipenas-cl

drivers/staging/sm750fb/sm750.c

@@ -160,7 +160,7 @@ static void lynxfb_ops_fillrect(struct fb_info *info,
 {
 	struct lynxfb_par *par;
 	struct sm750_dev *sm750_dev;
-	unsigned int base, pitch, Bpp, rop;
+	unsigned int base, pitch, bpp, rop;
 	u32 color;
 
 	if (info->state != FBINFO_STATE_RUNNING)
@@ -175,9 +175,9 @@ static void lynxfb_ops_fillrect(struct fb_info *info,
 	 */
 	base = par->crtc.o_screen;
 	pitch = info->fix.line_length;
-	Bpp = info->var.bits_per_pixel >> 3;
+	bpp = info->var.bits_per_pixel >> 3;
 
-	color = (Bpp == 1) ? region->color :
+	color = (bpp == 1) ? region->color :
 		((u32 *)info->pseudo_palette)[region->color];
 	rop = (region->rop != ROP_COPY) ? HW_ROP2_XOR : HW_ROP2_COPY;
 
@@ -190,7 +190,7 @@ static void lynxfb_ops_fillrect(struct fb_info *info,
 	spin_lock(&sm750_dev->slock);
 
 	sm750_dev->accel.de_fillrect(&sm750_dev->accel,
-				     base, pitch, Bpp,
+				     base, pitch, bpp,
 				     region->dx, region->dy,
 				     region->width, region->height,
 				     color, rop);
@@ -202,7 +202,7 @@ static void lynxfb_ops_copyarea(struct fb_info *info,
 {
 	struct lynxfb_par *par;
 	struct sm750_dev *sm750_dev;
-	unsigned int base, pitch, Bpp;
+	unsigned int base, pitch, bpp;
 
 	par = info->par;
 	sm750_dev = par->dev;
@@ -213,7 +213,7 @@ static void lynxfb_ops_copyarea(struct fb_info *info,
 	 */
 	base = par->crtc.o_screen;
 	pitch = info->fix.line_length;
-	Bpp = info->var.bits_per_pixel >> 3;
+	bpp = info->var.bits_per_pixel >> 3;
 
 	/*
 	 * If not use spin_lock, system will die if user load driver
@@ -225,7 +225,7 @@ static void lynxfb_ops_copyarea(struct fb_info *info,
 
 	sm750_dev->accel.de_copyarea(&sm750_dev->accel,
 				     base, pitch, region->sx, region->sy,
-				     base, pitch, Bpp, region->dx, region->dy,
+				     base, pitch, bpp, region->dx, region->dy,
 				     region->width, region->height,
 				     HW_ROP2_COPY);
 	spin_unlock(&sm750_dev->slock);
@@ -234,7 +234,7 @@ static void lynxfb_ops_copyarea(struct fb_info *info,
 static void lynxfb_ops_imageblit(struct fb_info *info,
 				 const struct fb_image *image)
 {
-	unsigned int base, pitch, Bpp;
+	unsigned int base, pitch, bpp;
 	unsigned int fgcol, bgcol;
 	struct lynxfb_par *par;
 	struct sm750_dev *sm750_dev;
@@ -247,7 +247,7 @@ static void lynxfb_ops_imageblit(struct fb_info *info,
 	 */
 	base = par->crtc.o_screen;
 	pitch = info->fix.line_length;
-	Bpp = info->var.bits_per_pixel >> 3;
+	bpp = info->var.bits_per_pixel >> 3;
 
 	/* TODO: Implement hardware acceleration for image->depth > 1 */
 	if (image->depth != 1) {
@@ -274,7 +274,7 @@ static void lynxfb_ops_imageblit(struct fb_info *info,
 
 	sm750_dev->accel.de_imageblit(&sm750_dev->accel,
 				      image->data, image->width >> 3, 0,
-				      base, pitch, Bpp,
+				      base, pitch, bpp,
 				      image->dx, image->dy,
 				      image->width, image->height,
 				      fgcol, bgcol, HW_ROP2_COPY);