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![Linus Torvalds](/assets/img/avatar_default.png)
from Dialog Semiconductor. Besides that driver we also have: - Device tree support for the s2mps11 driver - More devm_* conversion for the pm8921, max89xx, menelaus, tps65010, wl1273 and pcf50633-adc drivers. - A conversion to threaded IRQ and IRQ domain for the twl6030 driver. - A fairly big update for the rtsx driver: Better power saving support, better vendor settings handling, and a few fixes. - Support for a couple more boards (COMe-bHL6 and COMe-cTH6) for the Kontron driver. - A conversion to the dev_get_platdata() API for all MFD drivers. - A removal of non-DT (legacy) support for the twl6040 driver. - A few fixes and additions (Mic detect level) to the wm5110 register tables. - Regmap support for the davinci_voicecodec driver. - The usual bunch of minor cleanups and janitorial fixes. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAABAgAGBQJSKFnjAAoJEIqAPN1PVmxKU9AP/RAmSYux6c+cd7P7roXL+/lA qNKy8Op31J51N/n918o7zwbskmRIJJsbd+I6ClBlYdCUB+B8/Oj41uD4F+q35b/H F5Xm2XRPQAGHx37m5adJMrK/OR3zCTwhPjleJYOJWIFjDP/nDNJIPwTYb13Rqurh V39icmRtnNR0uDOmv3eELyV4FnWQTpA858dxuhSi+5jbbHFhCcYShEmE9109eexl RNuyF8d0KPGvnKhK+H1/k4ZYG2XAFFOZfZz9MB+l651nidqDvwJph0Zdj3w1r112 8OR5i7B3vw268nmyjOOUtYqL2vOaUW4lavmLTQiSdQWd1BHv9hEmD0RRR5bSrLeH 6DwCTh0+xWH08ogbMwi4dwZyRhjxMPMpkxeNz51TpRnXKDSZmBgrjovKNJpP8pW6 m7RsgUC9AiEQf/Ac0PBMrU8ABKeJnt3K3ZZp4YN7/H6rAMOhXjLqFD8JLoFvx08z itKKSzVaIA3pzxpnkWWiTsr+bChaSOrHHy1biWa4ve5pvrFc9ivPz1DhL3PTmXpp haeeylFG01r5NJIHeJewRsmUJk67aEyeAnnoLwqCRycWjdDmcCBC5bgDBkRRonoS 93tgKVzL9q/NwvT5Uatw3uYqTN0jOuH0t39gAzu9uwnWvivcZK5EBYh789YQL+on zih4qUICM08yWRDNNDgF =a7dU -----END PGP SIGNATURE----- Merge tag 'mfd-3.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next Pull MFD (multi-function device) updates from Samuel Ortiz: "For the 3.12 merge window we have one new driver for the DA9063 PMIC from Dialog Semiconductor. Besides that driver we also have: - Device tree support for the s2mps11 driver - More devm_* conversion for the pm8921, max89xx, menelaus, tps65010, wl1273 and pcf50633-adc drivers. - A conversion to threaded IRQ and IRQ domain for the twl6030 driver. - A fairly big update for the rtsx driver: Better power saving support, better vendor settings handling, and a few fixes. - Support for a couple more boards (COMe-bHL6 and COMe-cTH6) for the Kontron driver. - A conversion to the dev_get_platdata() API for all MFD drivers. - A removal of non-DT (legacy) support for the twl6040 driver. - A few fixes and additions (Mic detect level) to the wm5110 register tables. - Regmap support for the davinci_voicecodec driver. - The usual bunch of minor cleanups and janitorial fixes" * tag 'mfd-3.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (81 commits) mfd: ucb1x00-core: Rewrite ucb1x00_add_dev() mfd: ab8500-debugfs: Apply a check for -ENOMEM after allocating memory for event name mfd: ab8500-debugfs: Apply a check for -ENOMEM after allocating memory for sysfs mfd: timberdale: Use module_pci_driver mfd: timberdale: Remove redundant break mfd: timberdale: Staticize local variables mfd: ab8500-debugfs: Staticize local variables mfd: db8500-prcmu: Staticize clk_mgt mfd: db8500-prcmu: Use ANSI function declaration mfd: omap-usb-host: Staticize usbhs_driver_name mfd: 88pm805: Fix potential NULL pdata dereference mfd: 88pm800: Fix potential NULL pdata dereference mfd: twl6040: Use regmap for register cache mfd: davinci_voicecodec: Provide a regmap for register I/O mfd: davinci_voicecodec: Remove unused read and write functions mmc: memstick: rtsx: Modify copyright comments mmc: rtsx: Clear SD_CLK toggle enable bit if switching voltage fail mfd: mmc: rtsx: Change default tx phase mfd: pcf50633-adc: Use devm_*() functions mfd: rtsx: Copyright modifications ...
301 lines
8.6 KiB
C
301 lines
8.6 KiB
C
/* Driver for Realtek PCI-Express card reader
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*
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* Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author:
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* Wei WANG <wei_wang@realsil.com.cn>
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* Roger Tseng <rogerable@realtek.com>
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/mfd/rtsx_pci.h>
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#include "rtsx_pcr.h"
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static void rts5227_fill_driving(struct rtsx_pcr *pcr, u8 voltage)
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{
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u8 driving_3v3[4][3] = {
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{0x13, 0x13, 0x13},
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{0x96, 0x96, 0x96},
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{0x7F, 0x7F, 0x7F},
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{0x96, 0x96, 0x96},
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};
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u8 driving_1v8[4][3] = {
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{0x99, 0x99, 0x99},
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{0xAA, 0xAA, 0xAA},
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{0xFE, 0xFE, 0xFE},
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{0xB3, 0xB3, 0xB3},
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};
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u8 (*driving)[3], drive_sel;
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if (voltage == OUTPUT_3V3) {
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driving = driving_3v3;
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drive_sel = pcr->sd30_drive_sel_3v3;
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} else {
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driving = driving_1v8;
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drive_sel = pcr->sd30_drive_sel_1v8;
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}
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CLK_DRIVE_SEL,
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0xFF, driving[drive_sel][0]);
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL,
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0xFF, driving[drive_sel][1]);
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL,
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0xFF, driving[drive_sel][2]);
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}
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static void rts5227_fetch_vendor_settings(struct rtsx_pcr *pcr)
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{
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u32 reg;
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rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, ®);
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dev_dbg(&(pcr->pci->dev), "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg);
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if (!rtsx_vendor_setting_valid(reg))
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return;
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pcr->aspm_en = rtsx_reg_to_aspm(reg);
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pcr->sd30_drive_sel_1v8 = rtsx_reg_to_sd30_drive_sel_1v8(reg);
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pcr->card_drive_sel &= 0x3F;
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pcr->card_drive_sel |= rtsx_reg_to_card_drive_sel(reg);
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rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG2, ®);
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dev_dbg(&(pcr->pci->dev), "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG2, reg);
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pcr->sd30_drive_sel_3v3 = rtsx_reg_to_sd30_drive_sel_3v3(reg);
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if (rtsx_reg_check_reverse_socket(reg))
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pcr->flags |= PCR_REVERSE_SOCKET;
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}
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static void rts5227_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
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{
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/* Set relink_time to 0 */
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rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, 0xFF, 0);
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rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, 0xFF, 0);
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rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3, 0x01, 0);
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if (pm_state == HOST_ENTER_S3)
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rtsx_pci_write_register(pcr, PM_CTRL3, 0x10, 0x10);
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rtsx_pci_write_register(pcr, FPDCTL, 0x03, 0x03);
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}
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static int rts5227_extra_init_hw(struct rtsx_pcr *pcr)
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{
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u16 cap;
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rtsx_pci_init_cmd(pcr);
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/* Configure GPIO as output */
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, GPIO_CTL, 0x02, 0x02);
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/* Reset ASPM state to default value */
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, ASPM_FORCE_CTL, 0x3F, 0);
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/* Switch LDO3318 source from DV33 to card_3v3 */
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x00);
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x01);
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/* LED shine disabled, set initial shine cycle period */
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OLT_LED_CTL, 0x0F, 0x02);
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/* Configure LTR */
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pcie_capability_read_word(pcr->pci, PCI_EXP_DEVCTL2, &cap);
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if (cap & PCI_EXP_DEVCTL2_LTR_EN)
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LTR_CTL, 0xFF, 0xA3);
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/* Configure OBFF */
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OBFF_CFG, 0x03, 0x03);
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/* Configure driving */
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rts5227_fill_driving(pcr, OUTPUT_3V3);
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/* Configure force_clock_req */
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if (pcr->flags & PCR_REVERSE_SOCKET)
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
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AUTOLOAD_CFG_BASE + 3, 0xB8, 0xB8);
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else
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
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AUTOLOAD_CFG_BASE + 3, 0xB8, 0x88);
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PM_CTRL3, 0x10, 0x00);
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return rtsx_pci_send_cmd(pcr, 100);
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}
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static int rts5227_optimize_phy(struct rtsx_pcr *pcr)
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{
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/* Optimize RX sensitivity */
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return rtsx_pci_write_phy_register(pcr, 0x00, 0xBA42);
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}
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static int rts5227_turn_on_led(struct rtsx_pcr *pcr)
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{
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return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02);
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}
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static int rts5227_turn_off_led(struct rtsx_pcr *pcr)
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{
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return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00);
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}
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static int rts5227_enable_auto_blink(struct rtsx_pcr *pcr)
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{
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return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08);
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}
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static int rts5227_disable_auto_blink(struct rtsx_pcr *pcr)
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{
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return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00);
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}
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static int rts5227_card_power_on(struct rtsx_pcr *pcr, int card)
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{
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int err;
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rtsx_pci_init_cmd(pcr);
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
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SD_POWER_MASK, SD_PARTIAL_POWER_ON);
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
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LDO3318_PWR_MASK, 0x02);
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err = rtsx_pci_send_cmd(pcr, 100);
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if (err < 0)
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return err;
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/* To avoid too large in-rush current */
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udelay(150);
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rtsx_pci_init_cmd(pcr);
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
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SD_POWER_MASK, SD_POWER_ON);
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
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LDO3318_PWR_MASK, 0x06);
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err = rtsx_pci_send_cmd(pcr, 100);
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if (err < 0)
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return err;
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return 0;
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}
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static int rts5227_card_power_off(struct rtsx_pcr *pcr, int card)
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{
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rtsx_pci_init_cmd(pcr);
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
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SD_POWER_MASK | PMOS_STRG_MASK,
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SD_POWER_OFF | PMOS_STRG_400mA);
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rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
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LDO3318_PWR_MASK, 0X00);
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return rtsx_pci_send_cmd(pcr, 100);
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}
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static int rts5227_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
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{
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int err;
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if (voltage == OUTPUT_3V3) {
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err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24);
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if (err < 0)
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return err;
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} else if (voltage == OUTPUT_1V8) {
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err = rtsx_pci_write_phy_register(pcr, 0x11, 0x3C02);
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if (err < 0)
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return err;
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err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C80 | 0x24);
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if (err < 0)
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return err;
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} else {
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return -EINVAL;
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}
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/* set pad drive */
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rtsx_pci_init_cmd(pcr);
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rts5227_fill_driving(pcr, voltage);
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return rtsx_pci_send_cmd(pcr, 100);
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}
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static const struct pcr_ops rts5227_pcr_ops = {
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.fetch_vendor_settings = rts5227_fetch_vendor_settings,
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.extra_init_hw = rts5227_extra_init_hw,
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.optimize_phy = rts5227_optimize_phy,
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.turn_on_led = rts5227_turn_on_led,
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.turn_off_led = rts5227_turn_off_led,
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.enable_auto_blink = rts5227_enable_auto_blink,
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.disable_auto_blink = rts5227_disable_auto_blink,
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.card_power_on = rts5227_card_power_on,
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.card_power_off = rts5227_card_power_off,
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.switch_output_voltage = rts5227_switch_output_voltage,
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.cd_deglitch = NULL,
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.conv_clk_and_div_n = NULL,
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.force_power_down = rts5227_force_power_down,
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};
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/* SD Pull Control Enable:
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* SD_DAT[3:0] ==> pull up
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* SD_CD ==> pull up
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* SD_WP ==> pull up
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* SD_CMD ==> pull up
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* SD_CLK ==> pull down
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*/
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static const u32 rts5227_sd_pull_ctl_enable_tbl[] = {
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RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
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RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9),
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0,
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};
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/* SD Pull Control Disable:
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* SD_DAT[3:0] ==> pull down
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* SD_CD ==> pull up
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* SD_WP ==> pull down
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* SD_CMD ==> pull down
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* SD_CLK ==> pull down
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*/
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static const u32 rts5227_sd_pull_ctl_disable_tbl[] = {
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RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
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RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
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0,
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};
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/* MS Pull Control Enable:
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* MS CD ==> pull up
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* others ==> pull down
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*/
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static const u32 rts5227_ms_pull_ctl_enable_tbl[] = {
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RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
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RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
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0,
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};
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/* MS Pull Control Disable:
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* MS CD ==> pull up
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* others ==> pull down
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*/
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static const u32 rts5227_ms_pull_ctl_disable_tbl[] = {
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RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
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RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
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0,
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};
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void rts5227_init_params(struct rtsx_pcr *pcr)
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{
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pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
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pcr->num_slots = 2;
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pcr->ops = &rts5227_pcr_ops;
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pcr->flags = 0;
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pcr->card_drive_sel = RTSX_CARD_DRIVE_DEFAULT;
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pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
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pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
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pcr->aspm_en = ASPM_L1_EN;
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pcr->tx_initial_phase = SET_CLOCK_PHASE(27, 27, 15);
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pcr->rx_initial_phase = SET_CLOCK_PHASE(30, 7, 7);
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pcr->sd_pull_ctl_enable_tbl = rts5227_sd_pull_ctl_enable_tbl;
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pcr->sd_pull_ctl_disable_tbl = rts5227_sd_pull_ctl_disable_tbl;
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pcr->ms_pull_ctl_enable_tbl = rts5227_ms_pull_ctl_enable_tbl;
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pcr->ms_pull_ctl_disable_tbl = rts5227_ms_pull_ctl_disable_tbl;
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}
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