staging: sm7xxfb: rename some smtcfb_info fields

This patch improves naming style and comments on smtcfb_info fields.
Signed-off-by: NJavier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm7xxfb/sm7xxfb.c

@@ -43,11 +43,11 @@ struct smtcfb_info {
 	u16 chip_id;
 	u8  chip_rev_id;
 
-	void __iomem *m_pMMIO;
-	void __iomem *m_pLFB;
-	void __iomem *m_pDPR;
-	void __iomem *m_pVPR;
-	void __iomem *m_pCPR;
+	void __iomem *lfb;	/* linear frame buffer */
+	void __iomem *dp_regs;	/* drawing processor control regs */
+	void __iomem *vp_regs;	/* video processor control regs */
+	void __iomem *cp_regs;	/* capture processor control regs */
+	void __iomem *mmio;	/* memory map IO port */
 
 	u_int width;
 	u_int height;
@@ -551,28 +551,28 @@ static void sm7xx_set_timing(struct smtcfb_info *sfb)
 	smtc_mmiowb(0x67, 0x3c2);
 
 	/* set VPR registers */
-	writel(0x0, sfb->m_pVPR + 0x0C);
-	writel(0x0, sfb->m_pVPR + 0x40);
+	writel(0x0, sfb->vp_regs + 0x0C);
+	writel(0x0, sfb->vp_regs + 0x40);
 
 	/* set data width */
 	m_nScreenStride =
 		(sfb->width * sfb->fb.var.bits_per_pixel) / 64;
 	switch (sfb->fb.var.bits_per_pixel) {
 	case 8:
-		writel(0x0, sfb->m_pVPR + 0x0);
+		writel(0x0, sfb->vp_regs + 0x0);
 		break;
 	case 16:
-		writel(0x00020000, sfb->m_pVPR + 0x0);
+		writel(0x00020000, sfb->vp_regs + 0x0);
 		break;
 	case 24:
-		writel(0x00040000, sfb->m_pVPR + 0x0);
+		writel(0x00040000, sfb->vp_regs + 0x0);
 		break;
 	case 32:
-		writel(0x00030000, sfb->m_pVPR + 0x0);
+		writel(0x00030000, sfb->vp_regs + 0x0);
 		break;
 	}
 	writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride),
-	       sfb->m_pVPR + 0x10);
+	       sfb->vp_regs + 0x10);
 
 }
 
@@ -825,23 +825,23 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
 		sfb->fb.fix.mmio_len = 0x00400000;
 		smem_size = SM712_VIDEOMEMORYSIZE;
 #ifdef __BIG_ENDIAN
-		sfb->m_pLFB = (smtc_VRAMBaseAddress =
+		sfb->lfb = (smtc_VRAMBaseAddress =
 		    ioremap(pFramebufferPhysical, 0x00c00000));
 #else
-		sfb->m_pLFB = (smtc_VRAMBaseAddress =
+		sfb->lfb = (smtc_VRAMBaseAddress =
 		    ioremap(pFramebufferPhysical, 0x00800000));
 #endif
-		sfb->m_pMMIO = (smtc_RegBaseAddress =
+		sfb->mmio = (smtc_RegBaseAddress =
 		    smtc_VRAMBaseAddress + 0x00700000);
-		sfb->m_pDPR = smtc_VRAMBaseAddress + 0x00408000;
-		sfb->m_pVPR = sfb->m_pLFB + 0x0040c000;
+		sfb->dp_regs = smtc_VRAMBaseAddress + 0x00408000;
+		sfb->vp_regs = sfb->lfb + 0x0040c000;
 #ifdef __BIG_ENDIAN
 		if (sfb->fb.var.bits_per_pixel == 32) {
 			smtc_VRAMBaseAddress += 0x800000;
-			sfb->m_pLFB += 0x800000;
+			sfb->lfb += 0x800000;
 			dev_info(&pdev->dev,
-				 "smtc_VRAMBaseAddress=%p sfb->m_pLFB=%p",
-				  smtc_VRAMBaseAddress, sfb->m_pLFB);
+				 "smtc_VRAMBaseAddress=%p sfb->lfb=%p",
+				  smtc_VRAMBaseAddress, sfb->lfb);
 		}
 #endif
 		if (!smtc_RegBaseAddress) {
@@ -868,12 +868,12 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
 		sfb->fb.fix.mmio_start = pFramebufferPhysical;
 		sfb->fb.fix.mmio_len = 0x00200000;
 		smem_size = SM722_VIDEOMEMORYSIZE;
-		sfb->m_pDPR = ioremap(pFramebufferPhysical, 0x00a00000);
-		sfb->m_pLFB = (smtc_VRAMBaseAddress =
-		    sfb->m_pDPR + 0x00200000);
-		sfb->m_pMMIO = (smtc_RegBaseAddress =
-		    sfb->m_pDPR + 0x000c0000);
-		sfb->m_pVPR = sfb->m_pDPR + 0x800;
+		sfb->dp_regs = ioremap(pFramebufferPhysical, 0x00a00000);
+		sfb->lfb = (smtc_VRAMBaseAddress =
+		    sfb->dp_regs + 0x00200000);
+		sfb->mmio = (smtc_RegBaseAddress =
+		    sfb->dp_regs + 0x000c0000);
+		sfb->vp_regs = sfb->dp_regs + 0x800;
 
 		smtc_seqw(0x62, 0xff);
 		smtc_seqw(0x6a, 0x0d);