From: Javier M. Mellid Date: Thu, 26 Apr 2012 18:45:53 +0000 (+0200) Subject: staging: sm7xx: merge hardware information in smtcfb_info struct X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9be467d5b7ef350ef50eddcccfb5ad69b2c19090;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git staging: sm7xx: merge hardware information in smtcfb_info struct With this patch smtcfb_info becomes the main structure to reach/handle state. fb_info struct links this struct via its private data field. This change improves encapsulation in functions. It reduces the number of arguments used in signatures too. Tested with SM712 Signed-off-by: Javier M. Mellid Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c index e351e083a869..5defdaf206d0 100644 --- a/drivers/staging/sm7xx/smtcfb.c +++ b/drivers/staging/sm7xx/smtcfb.c @@ -40,21 +40,12 @@ struct screen_info smtc_screen_info; */ struct smtcfb_info { struct fb_info fb; - struct display_switch *dispsw; - struct pci_dev *dev; - signed int currcon; - + struct pci_dev *pdev; struct { u8 red, green, blue; } palette[NR_RGB]; - u_int palette_size; -}; -struct par_info { - /* - * Hardware - */ u16 chipID; unsigned char __iomem *m_pMMIO; char __iomem *m_pLFB; @@ -97,7 +88,6 @@ char __iomem *smtc_RegBaseAddress; /* Memory Map IO starting address */ char __iomem *smtc_VRAMBaseAddress; /* video memory starting address */ static u32 colreg[17]; -static struct par_info hw; /* hardware information */ static struct fb_var_screeninfo smtcfb_var = { .xres = 1024, @@ -122,32 +112,29 @@ static struct fb_fix_screeninfo smtcfb_fix = { .accel = FB_ACCEL_SMI_LYNX, }; -static void sm712_set_timing(struct smtcfb_info *sfb, - struct par_info *ppar_info) +static void sm712_set_timing(struct smtcfb_info *sfb) { int i = 0, j = 0; u32 m_nScreenStride; - dev_dbg(&sfb->dev->dev, - "ppar_info->width=%d ppar_info->height=%d" - "sfb->fb.var.bits_per_pixel=%d ppar_info->hz=%d\n", - ppar_info->width, ppar_info->height, - sfb->fb.var.bits_per_pixel, ppar_info->hz); + dev_dbg(&sfb->pdev->dev, + "sfb->width=%d sfb->height=%d " + "sfb->fb.var.bits_per_pixel=%d sfb->hz=%d\n", + sfb->width, sfb->height, sfb->fb.var.bits_per_pixel, sfb->hz); for (j = 0; j < numVGAModes; j++) { - if (VGAMode[j].mmSizeX == ppar_info->width && - VGAMode[j].mmSizeY == ppar_info->height && + if (VGAMode[j].mmSizeX == sfb->width && + VGAMode[j].mmSizeY == sfb->height && VGAMode[j].bpp == sfb->fb.var.bits_per_pixel && - VGAMode[j].hz == ppar_info->hz) { + VGAMode[j].hz == sfb->hz) { - dev_dbg(&sfb->dev->dev, - "VGAMode[j].mmSizeX=%d VGAMode[j].mmSizeY=%d" + dev_dbg(&sfb->pdev->dev, + "VGAMode[j].mmSizeX=%d VGAMode[j].mmSizeY=%d " "VGAMode[j].bpp=%d VGAMode[j].hz=%d\n", VGAMode[j].mmSizeX, VGAMode[j].mmSizeY, VGAMode[j].bpp, VGAMode[j].hz); - dev_dbg(&sfb->dev->dev, - "VGAMode index=%d\n", j); + dev_dbg(&sfb->pdev->dev, "VGAMode index=%d\n", j); smtc_mmiowb(0x0, 0x3c6); @@ -208,37 +195,37 @@ static void sm712_set_timing(struct smtcfb_info *sfb, smtc_mmiowb(0x67, 0x3c2); /* set VPR registers */ - writel(0x0, ppar_info->m_pVPR + 0x0C); - writel(0x0, ppar_info->m_pVPR + 0x40); + writel(0x0, sfb->m_pVPR + 0x0C); + writel(0x0, sfb->m_pVPR + 0x40); /* set data width */ m_nScreenStride = - (ppar_info->width * sfb->fb.var.bits_per_pixel) / 64; + (sfb->width * sfb->fb.var.bits_per_pixel) / 64; switch (sfb->fb.var.bits_per_pixel) { case 8: - writel(0x0, ppar_info->m_pVPR + 0x0); + writel(0x0, sfb->m_pVPR + 0x0); break; case 16: - writel(0x00020000, ppar_info->m_pVPR + 0x0); + writel(0x00020000, sfb->m_pVPR + 0x0); break; case 24: - writel(0x00040000, ppar_info->m_pVPR + 0x0); + writel(0x00040000, sfb->m_pVPR + 0x0); break; case 32: - writel(0x00030000, ppar_info->m_pVPR + 0x0); + writel(0x00030000, sfb->m_pVPR + 0x0); break; } writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride), - ppar_info->m_pVPR + 0x10); + sfb->m_pVPR + 0x10); } static void sm712_setpalette(int regno, unsigned red, unsigned green, unsigned blue, struct fb_info *info) { - struct par_info *cur_par = (struct par_info *)info->par; + struct smtcfb_info *sfb = info->par; - if (cur_par->BaseAddressInVRAM) + if (sfb->BaseAddressInVRAM) /* * second display palette for dual head. Enable CRT RAM, 6-bit * RAM @@ -253,14 +240,13 @@ static void sm712_setpalette(int regno, unsigned red, unsigned green, smtc_mmiowb(blue >> 10, dac_val); } -static void smtc_set_timing(struct smtcfb_info *sfb, struct par_info - *ppar_info) +static void smtc_set_timing(struct smtcfb_info *sfb) { - switch (ppar_info->chipID) { + switch (sfb->chipID) { case 0x710: case 0x712: case 0x720: - sm712_set_timing(sfb, ppar_info); + sm712_set_timing(sfb); break; } } @@ -630,10 +616,10 @@ void smtcfb_setmode(struct smtcfb_info *sfb) break; } - hw.width = sfb->fb.var.xres; - hw.height = sfb->fb.var.yres; - hw.hz = 60; - smtc_set_timing(sfb, &hw); + sfb->width = sfb->fb.var.xres; + sfb->height = sfb->fb.var.yres; + sfb->hz = 60; + smtc_set_timing(sfb); } static int smtc_check_var(struct fb_var_screeninfo *var, struct fb_info *info) @@ -680,8 +666,7 @@ static struct fb_ops smtcfb_ops = { /* * Alloc struct smtcfb_info and assign the default value */ -static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev, - char *name) +static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *pdev, char *name) { struct smtcfb_info *sfb; @@ -690,8 +675,7 @@ static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev, if (!sfb) return NULL; - sfb->currcon = -1; - sfb->dev = dev; + sfb->pdev = pdev; /*** Init sfb->fb with default value ***/ sfb->fb.flags = FBINFO_FLAG_DEFAULT; @@ -715,7 +699,9 @@ static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev, /* text mode acceleration */ sfb->fb.var.accel_flags = FB_ACCELF_TEXT; sfb->fb.var.vmode = FB_VMODE_NONINTERLACED; - sfb->fb.par = &hw; + + sfb->fb.par = sfb; + sfb->fb.pseudo_palette = colreg; return sfb; @@ -842,14 +828,14 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev, if (err) return err; - hw.chipID = ent->device; - sprintf(name, "sm%Xfb", hw.chipID); - sfb = smtc_alloc_fb_info(pdev, name); if (!sfb) goto failed_free; + sfb->chipID = ent->device; + sprintf(name, "sm%Xfb", sfb->chipID); + pci_set_drvdata(pdev, sfb); sm7xx_init_hw(); @@ -872,29 +858,29 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev, #endif /* Map address and memory detection */ pFramebufferPhysical = pci_resource_start(pdev, 0); - pci_read_config_byte(pdev, PCI_REVISION_ID, &hw.chipRevID); + pci_read_config_byte(pdev, PCI_REVISION_ID, &sfb->chipRevID); - switch (hw.chipID) { + switch (sfb->chipID) { case 0x710: case 0x712: sfb->fb.fix.mmio_start = pFramebufferPhysical + 0x00400000; sfb->fb.fix.mmio_len = 0x00400000; smem_size = SM712_VIDEOMEMORYSIZE; #ifdef __BIG_ENDIAN - hw.m_pLFB = (smtc_VRAMBaseAddress = + sfb->m_pLFB = (smtc_VRAMBaseAddress = ioremap(pFramebufferPhysical, 0x00c00000)); #else - hw.m_pLFB = (smtc_VRAMBaseAddress = + sfb->m_pLFB = (smtc_VRAMBaseAddress = ioremap(pFramebufferPhysical, 0x00800000)); #endif - hw.m_pMMIO = (smtc_RegBaseAddress = + sfb->m_pMMIO = (smtc_RegBaseAddress = smtc_VRAMBaseAddress + 0x00700000); - hw.m_pDPR = smtc_VRAMBaseAddress + 0x00408000; - hw.m_pVPR = hw.m_pLFB + 0x0040c000; + sfb->m_pDPR = smtc_VRAMBaseAddress + 0x00408000; + sfb->m_pVPR = sfb->m_pLFB + 0x0040c000; #ifdef __BIG_ENDIAN if (sfb->fb.var.bits_per_pixel == 32) { smtc_VRAMBaseAddress += 0x800000; - hw.m_pLFB += 0x800000; + sfb->m_pLFB += 0x800000; dev_info(&pdev->dev, "smtc_VRAMBaseAddress=%p sfb->m_pLFB=%p", smtc_VRAMBaseAddress, sfb->m_pLFB); @@ -924,12 +910,12 @@ 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; - hw.m_pDPR = ioremap(pFramebufferPhysical, 0x00a00000); - hw.m_pLFB = (smtc_VRAMBaseAddress = - hw.m_pDPR + 0x00200000); - hw.m_pMMIO = (smtc_RegBaseAddress = - hw.m_pDPR + 0x000c0000); - hw.m_pVPR = hw.m_pDPR + 0x800; + 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; smtc_seqw(0x62, 0xff); smtc_seqw(0x6a, 0x0d); @@ -954,18 +940,16 @@ static int __devinit smtcfb_pci_probe(struct pci_dev *pdev, smtcfb_setmode(sfb); /* Primary display starting from 0 position */ - hw.BaseAddressInVRAM = 0; - sfb->fb.par = &hw; + sfb->BaseAddressInVRAM = 0; err = register_framebuffer(&sfb->fb); if (err < 0) goto failed; dev_info(&pdev->dev, - "Silicon Motion SM%X Rev%X primary display mode" - "%dx%d-%d Init Complete.\n", hw.chipID, hw.chipRevID, - sfb->fb.var.xres, sfb->fb.var.yres, - sfb->fb.var.bits_per_pixel); + "Silicon Motion SM%X Rev%X primary display mode %dx%d-%d Init Complete.", + sfb->chipID, sfb->chipRevID, sfb->fb.var.xres, + sfb->fb.var.yres, sfb->fb.var.bits_per_pixel); return 0; @@ -1037,7 +1021,7 @@ static int smtcfb_pci_resume(struct device *device) /* reinit hardware */ sm7xx_init_hw(); - switch (hw.chipID) { + switch (sfb->chipID) { case 0x710: case 0x712: /* set MCLK = 14.31818 * (0x16 / 0x2) */