diff options
Diffstat (limited to 'drivers/video/omap2/dss/hdmi_phy.c')
| -rw-r--r-- | drivers/video/omap2/dss/hdmi_phy.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/drivers/video/omap2/dss/hdmi_phy.c b/drivers/video/omap2/dss/hdmi_phy.c deleted file mode 100644 index 45acb99..0000000 --- a/drivers/video/omap2/dss/hdmi_phy.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * HDMI PHY - * - * Copyright (C) 2013 Texas Instruments Incorporated - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/err.h> -#include <linux/io.h> -#include <linux/platform_device.h> -#include <video/omapdss.h> - -#include "dss.h" -#include "hdmi.h" - -void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s) -{ -#define DUMPPHY(r) seq_printf(s, "%-35s %08x\n", #r,\ - hdmi_read_reg(phy->base, r)) - - DUMPPHY(HDMI_TXPHY_TX_CTRL); - DUMPPHY(HDMI_TXPHY_DIGITAL_CTRL); - DUMPPHY(HDMI_TXPHY_POWER_CTRL); - DUMPPHY(HDMI_TXPHY_PAD_CFG_CTRL); -} - -static irqreturn_t hdmi_irq_handler(int irq, void *data) -{ - struct hdmi_wp_data *wp = data; - u32 irqstatus; - - irqstatus = hdmi_wp_get_irqstatus(wp); - hdmi_wp_set_irqstatus(wp, irqstatus); - - if ((irqstatus & HDMI_IRQ_LINK_CONNECT) && - irqstatus & HDMI_IRQ_LINK_DISCONNECT) { - /* - * If we get both connect and disconnect interrupts at the same - * time, turn off the PHY, clear interrupts, and restart, which - * raises connect interrupt if a cable is connected, or nothing - * if cable is not connected. - */ - hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF); - - hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT | - HDMI_IRQ_LINK_DISCONNECT); - - hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON); - } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) { - hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON); - } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) { - hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON); - } - - return IRQ_HANDLED; -} - -int hdmi_phy_enable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp, - struct hdmi_config *cfg) -{ - u16 r = 0; - u32 irqstatus; - - hdmi_wp_clear_irqenable(wp, 0xffffffff); - - irqstatus = hdmi_wp_get_irqstatus(wp); - hdmi_wp_set_irqstatus(wp, irqstatus); - - r = hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON); - if (r) - return r; - - /* - * Read address 0 in order to get the SCP reset done completed - * Dummy access performed to make sure reset is done - */ - hdmi_read_reg(phy->base, HDMI_TXPHY_TX_CTRL); - - /* - * Write to phy address 0 to configure the clock - * use HFBITCLK write HDMI_TXPHY_TX_CONTROL_FREQOUT field - */ - REG_FLD_MOD(phy->base, HDMI_TXPHY_TX_CTRL, 0x1, 31, 30); - - /* Write to phy address 1 to start HDMI line (TXVALID and TMDSCLKEN) */ - hdmi_write_reg(phy->base, HDMI_TXPHY_DIGITAL_CTRL, 0xF0000000); - - /* Setup max LDO voltage */ - REG_FLD_MOD(phy->base, HDMI_TXPHY_POWER_CTRL, 0xB, 3, 0); - - /* Write to phy address 3 to change the polarity control */ - REG_FLD_MOD(phy->base, HDMI_TXPHY_PAD_CFG_CTRL, 0x1, 27, 27); - - r = request_threaded_irq(phy->irq, NULL, hdmi_irq_handler, - IRQF_ONESHOT, "OMAP HDMI", wp); - if (r) { - DSSERR("HDMI IRQ request failed\n"); - hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF); - return r; - } - - hdmi_wp_set_irqenable(wp, - HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT); - - return 0; -} - -void hdmi_phy_disable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp) -{ - free_irq(phy->irq, wp); - - hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF); -} - -#define PHY_OFFSET 0x300 -#define PHY_SIZE 0x100 - -int hdmi_phy_init(struct platform_device *pdev, struct hdmi_phy_data *phy) -{ - struct resource *res; - struct resource temp_res; - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi_txphy"); - if (!res) { - DSSDBG("can't get PHY mem resource by name\n"); - /* - * if hwmod/DT doesn't have the memory resource information - * split into HDMI sub blocks by name, we try again by getting - * the platform's first resource. this code will be removed when - * the driver can get the mem resources by name - */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - DSSERR("can't get PHY mem resource\n"); - return -EINVAL; - } - - temp_res.start = res->start + PHY_OFFSET; - temp_res.end = temp_res.start + PHY_SIZE - 1; - res = &temp_res; - } - - phy->base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); - if (!phy->base) { - DSSERR("can't ioremap TX PHY\n"); - return -ENOMEM; - } - - phy->irq = platform_get_irq(pdev, 0); - if (phy->irq < 0) { - DSSERR("platform_get_irq failed\n"); - return -ENODEV; - } - - return 0; -} |