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@@ -1,25 +1,25 @@
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/*
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/*
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- * OMAP4XXX L3 Interconnect error handling driver
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- *
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- * Copyright (C) 2011 Texas Corporation
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- * Santosh Shilimkar <santosh.shilimkar@ti.com>
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- * Sricharan <r.sricharan@ti.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- * GNU 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
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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- * USA
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- */
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+ * OMAP4XXX L3 Interconnect error handling driver
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+ *
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+ * Copyright (C) 2011 Texas Corporation
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+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
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+ * Sricharan <r.sricharan@ti.com>
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU 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
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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+ * USA
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+ */
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#include <linux/init.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/io.h>
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#include <linux/platform_device.h>
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#include <linux/platform_device.h>
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@@ -55,12 +55,12 @@
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static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
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static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
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{
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{
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- struct omap4_l3 *l3 = _l3;
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- int inttype, i, j;
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+ struct omap4_l3 *l3 = _l3;
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+ int inttype, i, k;
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int err_src = 0;
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int err_src = 0;
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- u32 std_err_main_addr, std_err_main, err_reg;
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- u32 base, slave_addr, clear;
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- char *source_name;
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+ u32 std_err_main, err_reg, clear, masterid;
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+ void __iomem *base, *l3_targ_base;
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+ char *target_name, *master_name = "UN IDENTIFIED";
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/* Get the Type of interrupt */
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/* Get the Type of interrupt */
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inttype = irq == l3->app_irq ? L3_APPLICATION_ERROR : L3_DEBUG_ERROR;
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inttype = irq == l3->app_irq ? L3_APPLICATION_ERROR : L3_DEBUG_ERROR;
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@@ -70,43 +70,50 @@ static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
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* Read the regerr register of the clock domain
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* Read the regerr register of the clock domain
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* to determine the source
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* to determine the source
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*/
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*/
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- base = (u32)l3->l3_base[i];
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- err_reg = readl(base + l3_flagmux[i] + (inttype << 3));
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+ base = l3->l3_base[i];
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+ err_reg = __raw_readl(base + l3_flagmux[i] +
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+ + L3_FLAGMUX_REGERR0 + (inttype << 3));
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/* Get the corresponding error and analyse */
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/* Get the corresponding error and analyse */
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if (err_reg) {
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if (err_reg) {
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/* Identify the source from control status register */
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/* Identify the source from control status register */
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- for (j = 0; !(err_reg & (1 << j)); j++)
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- ;
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+ err_src = __ffs(err_reg);
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- err_src = j;
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/* Read the stderrlog_main_source from clk domain */
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/* Read the stderrlog_main_source from clk domain */
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- std_err_main_addr = base + *(l3_targ[i] + err_src);
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- std_err_main = readl(std_err_main_addr);
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+ l3_targ_base = base + *(l3_targ[i] + err_src);
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+ std_err_main = __raw_readl(l3_targ_base +
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+ L3_TARG_STDERRLOG_MAIN);
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+ masterid = __raw_readl(l3_targ_base +
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+ L3_TARG_STDERRLOG_MSTADDR);
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switch (std_err_main & CUSTOM_ERROR) {
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switch (std_err_main & CUSTOM_ERROR) {
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case STANDARD_ERROR:
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case STANDARD_ERROR:
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- source_name =
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- l3_targ_stderrlog_main_name[i][err_src];
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-
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- slave_addr = std_err_main_addr +
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- L3_SLAVE_ADDRESS_OFFSET;
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- WARN(true, "L3 standard error: SOURCE:%s at address 0x%x\n",
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- source_name, readl(slave_addr));
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+ target_name =
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+ l3_targ_inst_name[i][err_src];
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+ WARN(true, "L3 standard error: TARGET:%s at address 0x%x\n",
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+ target_name,
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+ __raw_readl(l3_targ_base +
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+ L3_TARG_STDERRLOG_SLVOFSLSB));
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/* clear the std error log*/
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/* clear the std error log*/
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clear = std_err_main | CLEAR_STDERR_LOG;
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clear = std_err_main | CLEAR_STDERR_LOG;
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- writel(clear, std_err_main_addr);
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+ writel(clear, l3_targ_base +
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+ L3_TARG_STDERRLOG_MAIN);
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break;
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break;
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case CUSTOM_ERROR:
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case CUSTOM_ERROR:
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- source_name =
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- l3_targ_stderrlog_main_name[i][err_src];
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-
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- WARN(true, "CUSTOM SRESP error with SOURCE:%s\n",
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- source_name);
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+ target_name =
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+ l3_targ_inst_name[i][err_src];
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+ for (k = 0; k < NUM_OF_L3_MASTERS; k++) {
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+ if (masterid == l3_masters[k].id)
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+ master_name =
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+ l3_masters[k].name;
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+ }
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+ WARN(true, "L3 custom error: MASTER:%s TARGET:%s\n",
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+ master_name, target_name);
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/* clear the std error log*/
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/* clear the std error log*/
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clear = std_err_main | CLEAR_STDERR_LOG;
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clear = std_err_main | CLEAR_STDERR_LOG;
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- writel(clear, std_err_main_addr);
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+ writel(clear, l3_targ_base +
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+ L3_TARG_STDERRLOG_MAIN);
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break;
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break;
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default:
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default:
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@@ -122,10 +129,9 @@ static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
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static int __init omap4_l3_probe(struct platform_device *pdev)
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static int __init omap4_l3_probe(struct platform_device *pdev)
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{
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{
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- static struct omap4_l3 *l3;
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- struct resource *res;
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- int ret;
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- int irq;
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+ static struct omap4_l3 *l3;
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+ struct resource *res;
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+ int ret;
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l3 = kzalloc(sizeof(*l3), GFP_KERNEL);
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l3 = kzalloc(sizeof(*l3), GFP_KERNEL);
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if (!l3)
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if (!l3)
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@@ -177,27 +183,25 @@ static int __init omap4_l3_probe(struct platform_device *pdev)
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/*
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/*
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* Setup interrupt Handlers
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* Setup interrupt Handlers
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*/
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*/
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- irq = platform_get_irq(pdev, 0);
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- ret = request_irq(irq,
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+ l3->debug_irq = platform_get_irq(pdev, 0);
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+ ret = request_irq(l3->debug_irq,
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l3_interrupt_handler,
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l3_interrupt_handler,
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IRQF_DISABLED, "l3-dbg-irq", l3);
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IRQF_DISABLED, "l3-dbg-irq", l3);
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if (ret) {
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if (ret) {
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pr_crit("L3: request_irq failed to register for 0x%x\n",
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pr_crit("L3: request_irq failed to register for 0x%x\n",
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- OMAP44XX_IRQ_L3_DBG);
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+ OMAP44XX_IRQ_L3_DBG);
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goto err3;
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goto err3;
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}
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}
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- l3->debug_irq = irq;
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- irq = platform_get_irq(pdev, 1);
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- ret = request_irq(irq,
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+ l3->app_irq = platform_get_irq(pdev, 1);
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+ ret = request_irq(l3->app_irq,
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l3_interrupt_handler,
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l3_interrupt_handler,
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IRQF_DISABLED, "l3-app-irq", l3);
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IRQF_DISABLED, "l3-app-irq", l3);
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if (ret) {
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if (ret) {
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pr_crit("L3: request_irq failed to register for 0x%x\n",
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pr_crit("L3: request_irq failed to register for 0x%x\n",
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- OMAP44XX_IRQ_L3_APP);
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+ OMAP44XX_IRQ_L3_APP);
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goto err4;
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goto err4;
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}
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}
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- l3->app_irq = irq;
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return 0;
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return 0;
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@@ -216,7 +220,7 @@ err0:
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static int __exit omap4_l3_remove(struct platform_device *pdev)
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static int __exit omap4_l3_remove(struct platform_device *pdev)
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{
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{
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- struct omap4_l3 *l3 = platform_get_drvdata(pdev);
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+ struct omap4_l3 *l3 = platform_get_drvdata(pdev);
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free_irq(l3->app_irq, l3);
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free_irq(l3->app_irq, l3);
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free_irq(l3->debug_irq, l3);
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free_irq(l3->debug_irq, l3);
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@@ -229,9 +233,9 @@ static int __exit omap4_l3_remove(struct platform_device *pdev)
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}
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}
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static struct platform_driver omap4_l3_driver = {
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static struct platform_driver omap4_l3_driver = {
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- .remove = __exit_p(omap4_l3_remove),
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- .driver = {
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- .name = "omap_l3_noc",
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+ .remove = __exit_p(omap4_l3_remove),
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+ .driver = {
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+ .name = "omap_l3_noc",
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},
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},
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};
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};
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