From f994693546274d3c690c89a736665f20c66f47f4 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 26 Mar 2015 19:46:01 +0000 Subject: xburst: Update to 3.18 Update the xburst target to kernel version 3.18 and also remove the broken 3.10 support. Signed-off-by: Lars-Peter Clausen git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45031 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- ...ly-the-vid-header-instead-of-the-whole-pa.patch | 25 ++ ...-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch | 48 ++++ ...pport-for-subpage-reads-for-NAND_ECC_HW_O.patch | 109 +++++++ ...-delay-activation-of-the-DAC-to-work-arou.patch | 38 +++ ...40-Init-the-regulator-register-on-startup.patch | 60 ++++ .../patches-3.18/006-Add-ili8960-lcd-driver.patch | 319 +++++++++++++++++++++ ...-t-use-3-wire-spi-mode-for-the-display-fo.patch | 26 ++ 7 files changed, 625 insertions(+) create mode 100644 target/linux/xburst/patches-3.18/001-ubi-Read-only-the-vid-header-instead-of-the-whole-pa.patch create mode 100644 target/linux/xburst/patches-3.18/002-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch create mode 100644 target/linux/xburst/patches-3.18/003-NAND-Add-support-for-subpage-reads-for-NAND_ECC_HW_O.patch create mode 100644 target/linux/xburst/patches-3.18/004-ASoC-JZ4740-delay-activation-of-the-DAC-to-work-arou.patch create mode 100644 target/linux/xburst/patches-3.18/005-RTC-JZ4740-Init-the-regulator-register-on-startup.patch create mode 100644 target/linux/xburst/patches-3.18/006-Add-ili8960-lcd-driver.patch create mode 100644 target/linux/xburst/patches-3.18/007-qi_lb60-Don-t-use-3-wire-spi-mode-for-the-display-fo.patch (limited to 'target/linux/xburst/patches-3.18') diff --git a/target/linux/xburst/patches-3.18/001-ubi-Read-only-the-vid-header-instead-of-the-whole-pa.patch b/target/linux/xburst/patches-3.18/001-ubi-Read-only-the-vid-header-instead-of-the-whole-pa.patch new file mode 100644 index 0000000000..180fa1dd9e --- /dev/null +++ b/target/linux/xburst/patches-3.18/001-ubi-Read-only-the-vid-header-instead-of-the-whole-pa.patch @@ -0,0 +1,25 @@ +From b0eb5175e0de3e5134a36a7da382d8811562af12 Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen +Date: Tue, 15 Mar 2011 12:49:15 +0100 +Subject: [PATCH 1/7] ubi: Read only the vid header instead of the whole page + +--- + drivers/mtd/ubi/io.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c +index d361349..596b568 100644 +--- a/drivers/mtd/ubi/io.c ++++ b/drivers/mtd/ubi/io.c +@@ -1009,7 +1009,7 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum, + + p = (char *)vid_hdr - ubi->vid_hdr_shift; + read_err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset, +- ubi->vid_hdr_alsize); ++ UBI_VID_HDR_SIZE + ubi->vid_hdr_shift); + if (read_err && read_err != UBI_IO_BITFLIPS && !mtd_is_eccerr(read_err)) + return read_err; + +-- +1.7.10.4 + diff --git a/target/linux/xburst/patches-3.18/002-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch b/target/linux/xburst/patches-3.18/002-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch new file mode 100644 index 0000000000..bba9f0bb50 --- /dev/null +++ b/target/linux/xburst/patches-3.18/002-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch @@ -0,0 +1,48 @@ +From 98d33db1c87e2447b9b203399d2f995e05ecdb52 Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen +Date: Sat, 26 Feb 2011 15:30:07 +0100 +Subject: [PATCH 2/7] NAND: Optimize NAND_ECC_HW_OOB_FIRST read + +Avoid sending unnecessary READ commands to the chip. +--- + drivers/mtd/nand/nand_base.c | 17 +++++++++++++---- + 1 file changed, 13 insertions(+), 4 deletions(-) + +diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c +index 5b5c627..4c8d646 100644 +--- a/drivers/mtd/nand/nand_base.c ++++ b/drivers/mtd/nand/nand_base.c +@@ -1360,9 +1360,16 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd, + unsigned int max_bitflips = 0; + + /* Read the OOB area first */ +- chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); +- chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); +- chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page); ++ /* Read the OOB area first */ ++ if (mtd->writesize > 512) { ++ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page); ++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, 0, -1); ++ } else { ++ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); ++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page); ++ } + + for (i = 0; i < chip->ecc.total; i++) + ecc_code[i] = chip->oob_poi[eccpos[i]]; +@@ -1575,7 +1582,9 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, + __func__, buf); + + read_retry: +- chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page); ++ if (chip->ecc.mode != NAND_ECC_HW_OOB_FIRST) { ++ chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page); ++ } + + /* + * Now read the page into the buffer. Absent an error, +-- +1.7.10.4 + diff --git a/target/linux/xburst/patches-3.18/003-NAND-Add-support-for-subpage-reads-for-NAND_ECC_HW_O.patch b/target/linux/xburst/patches-3.18/003-NAND-Add-support-for-subpage-reads-for-NAND_ECC_HW_O.patch new file mode 100644 index 0000000000..f3f6ca968e --- /dev/null +++ b/target/linux/xburst/patches-3.18/003-NAND-Add-support-for-subpage-reads-for-NAND_ECC_HW_O.patch @@ -0,0 +1,109 @@ +From 6031a240816d1c9a10f596d0648e586f6b878809 Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen +Date: Tue, 15 Mar 2011 12:33:41 +0100 +Subject: [PATCH 3/7] NAND: Add support for subpage reads for + NAND_ECC_HW_OOB_FIRST + +--- + drivers/mtd/nand/nand_base.c | 77 +++++++++++++++++++++++++++++++++++++++++- + 1 file changed, 76 insertions(+), 1 deletion(-) + +diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c +index 4c8d646..9809059 100644 +--- a/drivers/mtd/nand/nand_base.c ++++ b/drivers/mtd/nand/nand_base.c +@@ -1393,6 +1393,75 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd, + } + + /** ++ * nand_read_subpage_hwecc_oob_first - [REPLACABLE] hw ecc based sub-page read function ++ * @mtd: mtd info structure ++ * @chip: nand chip info structure ++ * @data_offs: offset of requested data within the page ++ * @readlen: data length ++ * @bufpoi: buffer to store read data ++ * @page: page number to read ++ * ++ * Hardware ECC for large page chips, require OOB to be read first. ++ * For this ECC mode, the write_page method is re-used from ECC_HW. ++ * These methods read/write ECC from the OOB area, unlike the ++ * ECC_HW_SYNDROME support with multiple ECC steps, follows the ++ * "infix ECC" scheme and reads/writes ECC from the data area, by ++ * overwriting the NAND manufacturer bad block markings. ++ */ ++static int nand_read_subpage_hwecc_oob_first(struct mtd_info *mtd, struct nand_chip *chip, ++ uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi, int page) ++{ ++ int start_step, end_step, num_steps; ++ uint32_t *eccpos = chip->ecc.layout->eccpos; ++ uint8_t *p; ++ int data_col_addr; ++ int eccsize = chip->ecc.size; ++ int eccbytes = chip->ecc.bytes; ++ uint8_t *ecc_code = chip->buffers->ecccode; ++ uint8_t *ecc_calc = chip->buffers->ecccalc; ++ int i; ++ ++ /* Column address wihin the page aligned to ECC size */ ++ start_step = data_offs / chip->ecc.size; ++ end_step = (data_offs + readlen - 1) / chip->ecc.size; ++ num_steps = end_step - start_step + 1; ++ ++ data_col_addr = start_step * chip->ecc.size; ++ ++ /* Read the OOB area first */ ++ if (mtd->writesize > 512) { ++ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page); ++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, data_col_addr, -1); ++ } else { ++ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); ++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ chip->cmdfunc(mtd, NAND_CMD_READ0, data_col_addr, page); ++ } ++ ++ for (i = 0; i < chip->ecc.total; i++) ++ ecc_code[i] = chip->oob_poi[eccpos[i]]; ++ ++ p = bufpoi + data_col_addr; ++ ++ for (i = eccbytes * start_step; num_steps; num_steps--, i += eccbytes, p += eccsize) { ++ int stat; ++ ++ chip->ecc.hwctl(mtd, NAND_ECC_READ); ++ chip->read_buf(mtd, p, eccsize); ++ chip->ecc.calculate(mtd, p, &ecc_calc[i]); ++ ++ stat = chip->ecc.correct(mtd, p, &ecc_code[i], NULL); ++ if (stat < 0) ++ mtd->ecc_stats.failed++; ++ else ++ mtd->ecc_stats.corrected += stat; ++ } ++ ++ return 0; ++} ++ ++/** + * nand_read_page_syndrome - [REPLACEABLE] hardware ECC syndrome based page read + * @mtd: mtd info structure + * @chip: nand chip info structure +@@ -3950,8 +4019,14 @@ int nand_scan_tail(struct mtd_info *mtd) + pr_warn("No ECC functions supplied; hardware ECC not possible\n"); + BUG(); + } +- if (!ecc->read_page) ++ ++ if (!ecc->read_page) { + ecc->read_page = nand_read_page_hwecc_oob_first; ++ if (!ecc->read_subpage) { ++ ecc->read_subpage = nand_read_subpage_hwecc_oob_first; ++ chip->options |= NAND_SUBPAGE_READ; ++ } ++ } + + case NAND_ECC_HW: + /* Use standard hwecc read page function? */ +-- +1.7.10.4 + diff --git a/target/linux/xburst/patches-3.18/004-ASoC-JZ4740-delay-activation-of-the-DAC-to-work-arou.patch b/target/linux/xburst/patches-3.18/004-ASoC-JZ4740-delay-activation-of-the-DAC-to-work-arou.patch new file mode 100644 index 0000000000..3de6ee0952 --- /dev/null +++ b/target/linux/xburst/patches-3.18/004-ASoC-JZ4740-delay-activation-of-the-DAC-to-work-arou.patch @@ -0,0 +1,38 @@ +From 1a1095927d224403af8ad57c354cc64521bf3081 Mon Sep 17 00:00:00 2001 +From: Paul Cercueil +Date: Sat, 16 Jun 2012 19:36:31 +0200 +Subject: [PATCH 4/7] ASoC: JZ4740: delay activation of the DAC to work around + a sound bug. + +A proper fix of that bug would require a big rewrite of the driver, +which (I hope) will be done eventually. +--- + sound/soc/codecs/jz4740.c | 9 ++++++--- + 1 file changed, 6 insertions(+), 3 deletions(-) + +diff --git a/sound/soc/codecs/jz4740.c b/sound/soc/codecs/jz4740.c +index df7c01c..6939444 100644 +--- a/sound/soc/codecs/jz4740.c ++++ b/sound/soc/codecs/jz4740.c +@@ -249,12 +249,15 @@ static int jz4740_codec_set_bias_level(struct snd_soc_codec *codec, + case SND_SOC_BIAS_ON: + break; + case SND_SOC_BIAS_PREPARE: +- mask = JZ4740_CODEC_1_VREF_DISABLE | +- JZ4740_CODEC_1_VREF_AMP_DISABLE | +- JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M; ++ mask = JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M; + value = 0; + + regmap_update_bits(regmap, JZ4740_REG_CODEC_1, mask, value); ++ ++ msleep(500); ++ mask = JZ4740_CODEC_1_VREF_DISABLE | ++ JZ4740_CODEC_1_VREF_AMP_DISABLE; ++ regmap_update_bits(regmap, JZ4740_REG_CODEC_1, mask, 0); + break; + case SND_SOC_BIAS_STANDBY: + /* The only way to clear the suspend flag is to reset the codec */ +-- +1.7.10.4 + diff --git a/target/linux/xburst/patches-3.18/005-RTC-JZ4740-Init-the-regulator-register-on-startup.patch b/target/linux/xburst/patches-3.18/005-RTC-JZ4740-Init-the-regulator-register-on-startup.patch new file mode 100644 index 0000000000..2dd8858d4b --- /dev/null +++ b/target/linux/xburst/patches-3.18/005-RTC-JZ4740-Init-the-regulator-register-on-startup.patch @@ -0,0 +1,60 @@ +From f05b1ecd7e4fde7e69320a4b7be461636e982991 Mon Sep 17 00:00:00 2001 +From: Paul Cercueil +Date: Thu, 13 Sep 2012 00:09:20 +0200 +Subject: [PATCH 5/7] RTC: JZ4740: Init the "regulator" register on startup. + +This register controls the accuracy of the RTC. uC/OS-II use +the RTC as a 100Hz clock, and writes a completely wrong value +on that register, that we have to overwrite if we want a working +real-time clock. + +Signed-off-by: Paul Cercueil +--- + drivers/rtc/rtc-jz4740.c | 17 +++++++++++++++++ + 1 file changed, 17 insertions(+) + +diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c +index 08f5160..5f027dc 100644 +--- a/drivers/rtc/rtc-jz4740.c ++++ b/drivers/rtc/rtc-jz4740.c +@@ -15,6 +15,7 @@ + */ + + #include ++#include + #include + #include + #include +@@ -216,6 +217,7 @@ static int jz4740_rtc_probe(struct platform_device *pdev) + struct jz4740_rtc *rtc; + uint32_t scratchpad; + struct resource *mem; ++ struct clk *rtc_clk; + + rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL); + if (!rtc) +@@ -263,6 +265,21 @@ static int jz4740_rtc_probe(struct platform_device *pdev) + } + } + ++ rtc_clk = clk_get(&pdev->dev, "rtc"); ++ if (IS_ERR(rtc_clk)) { ++ dev_err(&pdev->dev, "Failed to get RTC clock\n"); ++ return PTR_ERR(rtc_clk); ++ } ++ ++ /* TODO: initialize the ADJC bits (25:16) to fine-tune ++ * the accuracy of the RTC */ ++ ret = jz4740_rtc_reg_write(rtc, JZ_REG_RTC_REGULATOR, ++ (clk_get_rate(rtc_clk) - 1) & 0xffff); ++ clk_put(rtc_clk); ++ ++ if (ret) ++ dev_warn(&pdev->dev, "Could not update RTC regulator register\n"); ++ + return 0; + } + +-- +1.7.10.4 + diff --git a/target/linux/xburst/patches-3.18/006-Add-ili8960-lcd-driver.patch b/target/linux/xburst/patches-3.18/006-Add-ili8960-lcd-driver.patch new file mode 100644 index 0000000000..906b9968e7 --- /dev/null +++ b/target/linux/xburst/patches-3.18/006-Add-ili8960-lcd-driver.patch @@ -0,0 +1,319 @@ +From 8741ead92bc93e66740237e51b88b8690ebcbba3 Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen +Date: Sun, 1 Aug 2010 21:19:40 +0200 +Subject: [PATCH 6/7] Add ili8960 lcd driver + +Includes the following changes from the jz-3.5 branch: +- Use module_spi_driver +- Use devm_kzalloc +- Use kstrtoul + +Signed-off-by: Lars-Peter Clausen +--- + drivers/video/backlight/Kconfig | 7 + + drivers/video/backlight/Makefile | 1 + + drivers/video/backlight/ili8960.c | 262 +++++++++++++++++++++++++++++++++++++ + 3 files changed, 270 insertions(+) + create mode 100644 drivers/video/backlight/ili8960.c + +diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig +index 8d03924..14adcc6 100644 +--- a/drivers/video/backlight/Kconfig ++++ b/drivers/video/backlight/Kconfig +@@ -59,6 +59,13 @@ config LCD_LTV350QV + + The LTV350QV panel is present on all ATSTK1000 boards. + ++config LCD_ILI8960 ++ tristate "Ilitek ili8960 LCD driver" ++ depends on LCD_CLASS_DEVICE && SPI ++ default n ++ help ++ Driver for the Ilitek ili8960 LCD controller chip. ++ + config LCD_ILI922X + tristate "ILI Technology ILI9221/ILI9222 support" + depends on SPI +diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile +index fcd50b73..1f89974 100644 +--- a/drivers/video/backlight/Makefile ++++ b/drivers/video/backlight/Makefile +@@ -5,6 +5,7 @@ obj-$(CONFIG_LCD_CLASS_DEVICE) += lcd.o + obj-$(CONFIG_LCD_CORGI) += corgi_lcd.o + obj-$(CONFIG_LCD_HP700) += jornada720_lcd.o + obj-$(CONFIG_LCD_HX8357) += hx8357.o ++obj-$(CONFIG_LCD_ILI8960) += ili8960.o + obj-$(CONFIG_LCD_ILI922X) += ili922x.o + obj-$(CONFIG_LCD_ILI9320) += ili9320.o + obj-$(CONFIG_LCD_L4F00242T03) += l4f00242t03.o +diff --git a/drivers/video/backlight/ili8960.c b/drivers/video/backlight/ili8960.c +new file mode 100644 +index 0000000..61eb815 +--- /dev/null ++++ b/drivers/video/backlight/ili8960.c +@@ -0,0 +1,262 @@ ++/* ++ * Copyright (C) 2009-2010, Lars-Peter Clausen ++ * Driver for Ilitek ili8960 LCD ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 675 Mass Ave, Cambridge, MA 02139, USA. ++ * ++ */ ++ ++#include ++#include ++#include ++#include ++ ++struct ili8960 { ++ struct spi_device *spi; ++ struct lcd_device *lcd; ++ bool enabled; ++ unsigned int brightness; ++}; ++ ++#define ILI8960_REG_BRIGHTNESS 0x03 ++#define ILI8960_REG_POWER 0x05 ++#define ILI8960_REG_CONTRAST 0x0d ++ ++static int ili8960_write_reg(struct spi_device *spi, uint8_t reg, ++ uint8_t data) ++{ ++ uint8_t buf[2]; ++ buf[0] = ((reg & 0x40) << 1) | (reg & 0x3f); ++ buf[1] = data; ++ ++ return spi_write(spi, buf, sizeof(buf)); ++} ++ ++static int ili8960_programm_power(struct spi_device *spi, bool enabled) ++{ ++ int ret; ++ ++ if (enabled) ++ mdelay(20); ++ ++ ret = ili8960_write_reg(spi, ILI8960_REG_POWER, enabled ? 0xc7 : 0xc6); ++ ++ if (!enabled) ++ mdelay(20); ++ ++ return ret; ++} ++ ++static int ili8960_set_power(struct lcd_device *lcd, int power) ++{ ++ struct ili8960 *ili8960 = lcd_get_data(lcd); ++ ++ switch (power) { ++ case FB_BLANK_UNBLANK: ++ ili8960->enabled = true; ++ break; ++ default: ++ return 0; ++ } ++ ++ return ili8960_programm_power(ili8960->spi, ili8960->enabled); ++} ++ ++static int ili8960_early_set_power(struct lcd_device *lcd, int power) ++{ ++ struct ili8960 *ili8960 = lcd_get_data(lcd); ++ ++ switch (power) { ++ case FB_BLANK_UNBLANK: ++ return 0; ++ default: ++ ili8960->enabled = false; ++ break; ++ } ++ ++ return ili8960_programm_power(ili8960->spi, ili8960->enabled); ++} ++ ++static int ili8960_get_power(struct lcd_device *lcd) ++{ ++ struct ili8960 *ili8960 = lcd_get_data(lcd); ++ return ili8960->enabled ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; ++} ++ ++static int ili8960_set_contrast(struct lcd_device *lcd, int contrast) ++{ ++ struct ili8960 *ili8960 = lcd_get_data(lcd); ++ ++ return ili8960_write_reg(ili8960->spi, ILI8960_REG_CONTRAST, contrast); ++} ++ ++static int ili8960_set_mode(struct lcd_device *lcd, struct fb_videomode *mode) ++{ ++ if (mode->xres != 320 && mode->yres != 240) ++ return -EINVAL; ++ ++ return 0; ++} ++ ++static int ili8960_set_brightness(struct ili8960 *ili8960, int brightness) ++{ ++ int ret; ++ ++ ret = ili8960_write_reg(ili8960->spi, ILI8960_REG_BRIGHTNESS, brightness); ++ ++ if (ret == 0) ++ ili8960->brightness = brightness; ++ ++ return ret; ++} ++ ++static ssize_t ili8960_show_brightness(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct lcd_device *ld = to_lcd_device(dev); ++ struct ili8960 *ili8960 = lcd_get_data(ld); ++ ++ return sprintf(buf, "%u\n", ili8960->brightness); ++} ++ ++static ssize_t ili8960_store_brightness(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t count) ++{ ++ struct lcd_device *ld = to_lcd_device(dev); ++ struct ili8960 *ili8960 = lcd_get_data(ld); ++ unsigned long brightness; ++ int ret; ++ ++ ret = kstrtoul(buf, 0, &brightness); ++ if (ret) ++ return ret; ++ ++ if (brightness > 255) ++ return -EINVAL; ++ ++ ili8960_set_brightness(ili8960, brightness); ++ ++ return count; ++} ++ ++ ++static DEVICE_ATTR(brightness, 0644, ili8960_show_brightness, ++ ili8960_store_brightness); ++ ++static struct lcd_ops ili8960_lcd_ops = { ++ .set_power = ili8960_set_power, ++ .early_set_power = ili8960_early_set_power, ++ .get_power = ili8960_get_power, ++ .set_contrast = ili8960_set_contrast, ++ .set_mode = ili8960_set_mode, ++}; ++ ++static int ili8960_probe(struct spi_device *spi) ++{ ++ int ret; ++ struct ili8960 *ili8960; ++ ++ ili8960 = devm_kzalloc(&spi->dev, sizeof(*ili8960), GFP_KERNEL); ++ if (!ili8960) ++ return -ENOMEM; ++ ++ spi->bits_per_word = 8; ++ spi->mode = SPI_MODE_3; ++ ++ ret = spi_setup(spi); ++ if (ret) { ++ dev_err(&spi->dev, "Failed to setup spi\n"); ++ return ret; ++ } ++ ++ ili8960->spi = spi; ++ ++ ili8960->lcd = lcd_device_register("ili8960-lcd", &spi->dev, ili8960, ++ &ili8960_lcd_ops); ++ ++ if (IS_ERR(ili8960->lcd)) { ++ ret = PTR_ERR(ili8960->lcd); ++ dev_err(&spi->dev, "Failed to register lcd device: %d\n", ret); ++ return ret; ++ } ++ ++ ili8960->lcd->props.max_contrast = 255; ++ ++ ret = device_create_file(&ili8960->lcd->dev, &dev_attr_brightness); ++ if (ret) ++ goto err_unregister_lcd; ++ ++ ili8960_programm_power(ili8960->spi, true); ++ ili8960->enabled = true; ++ ++ spi_set_drvdata(spi, ili8960); ++ ++ ili8960_write_reg(spi, 0x13, 0x01); ++ ++ return 0; ++err_unregister_lcd: ++ lcd_device_unregister(ili8960->lcd); ++ return ret; ++} ++ ++static int ili8960_remove(struct spi_device *spi) ++{ ++ struct ili8960 *ili8960 = spi_get_drvdata(spi); ++ ++ device_remove_file(&ili8960->lcd->dev, &dev_attr_brightness); ++ lcd_device_unregister(ili8960->lcd); ++ ++ spi_set_drvdata(spi, NULL); ++ return 0; ++} ++ ++#ifdef CONFIG_PM ++ ++static int ili8960_suspend(struct spi_device *spi, pm_message_t state) ++{ ++ struct ili8960 *ili8960 = spi_get_drvdata(spi); ++ ++ if (ili8960->enabled) ++ ili8960_programm_power(ili8960->spi, false); ++ ++ return 0; ++} ++ ++static int ili8960_resume(struct spi_device *spi) ++{ ++ struct ili8960 *ili8960 = spi_get_drvdata(spi); ++ ++ if (ili8960->enabled) ++ ili8960_programm_power(ili8960->spi, true); ++ ++ return 0; ++} ++ ++#else ++#define ili8960_suspend NULL ++#define ili8960_resume NULL ++#endif ++ ++static struct spi_driver ili8960_driver = { ++ .driver = { ++ .name = "ili8960", ++ .owner = THIS_MODULE, ++ }, ++ .probe = ili8960_probe, ++ .remove = ili8960_remove, ++ .suspend = ili8960_suspend, ++ .resume = ili8960_resume, ++}; ++module_spi_driver(ili8960_driver); ++ ++MODULE_AUTHOR("Lars-Peter Clausen"); ++MODULE_LICENSE("GPL"); ++MODULE_DESCRIPTION("LCD driver for Ilitek ili8960"); ++MODULE_ALIAS("spi:ili8960"); +-- +1.7.10.4 + diff --git a/target/linux/xburst/patches-3.18/007-qi_lb60-Don-t-use-3-wire-spi-mode-for-the-display-fo.patch b/target/linux/xburst/patches-3.18/007-qi_lb60-Don-t-use-3-wire-spi-mode-for-the-display-fo.patch new file mode 100644 index 0000000000..aa8a4769d5 --- /dev/null +++ b/target/linux/xburst/patches-3.18/007-qi_lb60-Don-t-use-3-wire-spi-mode-for-the-display-fo.patch @@ -0,0 +1,26 @@ +From 4371d60ae342c76708c4317e06fb7dcf0159c2f1 Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen +Date: Wed, 13 Oct 2010 01:17:24 +0200 +Subject: [PATCH 7/7] qi_lb60: Don't use 3-wire spi mode for the display for + now + +The spi_gpio driver does not support 3-wire mode. +--- + arch/mips/jz4740/board-qi_lb60.c | 1 - + 1 file changed, 1 deletion(-) + +diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c +index c454525..04cf890 100644 +--- a/arch/mips/jz4740/board-qi_lb60.c ++++ b/arch/mips/jz4740/board-qi_lb60.c +@@ -312,7 +312,6 @@ static struct spi_board_info qi_lb60_spi_board_info[] = { + .chip_select = 0, + .bus_num = 1, + .max_speed_hz = 30 * 1000, +- .mode = SPI_3WIRE, + }, + }; + +-- +1.7.10.4 + -- cgit v1.2.3