From patchwork Thu Oct 18 13:26:43 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 1610221 Return-Path: X-Original-To: patchwork-spi-devel-general@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from lists.sourceforge.net (lists.sourceforge.net [216.34.181.88]) by patchwork2.kernel.org (Postfix) with ESMTP id 8195BDFB34 for ; Thu, 18 Oct 2012 13:25:58 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=sfs-ml-3.b.ch3.sourceforge.com) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1TOq6o-0000rc-8F; Thu, 18 Oct 2012 13:25:58 +0000 Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1TOq6n-0000rT-Fq for spi-devel-general@lists.sourceforge.net; Thu, 18 Oct 2012 13:25:57 +0000 Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.210.175 as permitted sender) client-ip=209.85.210.175; envelope-from=ohiomdp@gmail.com; helo=mail-ia0-f175.google.com; Received: from mail-ia0-f175.google.com ([209.85.210.175]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1TOq6m-0003NZ-I5 for spi-devel-general@lists.sourceforge.net; Thu, 18 Oct 2012 13:25:57 +0000 Received: by mail-ia0-f175.google.com with SMTP id b35so6745650iac.34 for ; Thu, 18 Oct 2012 06:25:51 -0700 (PDT) Received: by 10.42.57.10 with SMTP id b10mr3361529ich.54.1350566749806; Thu, 18 Oct 2012 06:25:49 -0700 (PDT) Received: from beef.ohporter.com (cpe-24-166-64-7.neo.res.rr.com. [24.166.64.7]) by mx.google.com with ESMTPS id x7sm14244186igk.8.2012.10.18.06.25.47 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 18 Oct 2012 06:25:49 -0700 (PDT) From: Matt Porter To: Tony Lindgren , Sekhar Nori , Grant Likely , Mark Brown , Benoit Cousson , Russell King , Vinod Koul , Rob Landley , Chris Ball Subject: [RFC PATCH v3 04/16] ARM: edma: add DT and runtime PM support for AM33XX Date: Thu, 18 Oct 2012 09:26:43 -0400 Message-Id: <1350566815-409-5-git-send-email-mporter@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1350566815-409-1-git-send-email-mporter@ti.com> References: <1350566815-409-1-git-send-email-mporter@ti.com> X-Spam-Score: -1.7 (-) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (ohiomdp[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.2 AWL AWL: From: address is in the auto white-list X-Headers-End: 1TOq6m-0003NZ-I5 Cc: Linux DaVinci Kernel List , Arnd Bergmann , Linux Documentation List , Devicetree Discuss , Linux MMC List , Linux Kernel Mailing List , Rob Herring , Dan Williams , Linux SPI Devel List , Linux OMAP List , Linux ARM Kernel List X-BeenThere: spi-devel-general@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: Linux SPI core/device drivers discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: spi-devel-general-bounces@lists.sourceforge.net Adds support for parsing the TI EDMA DT data into the required EDMA private API platform data. Calls runtime PM API only in the DT case in order to unidle the associated hwmods on AM33XX. Signed-off-by: Matt Porter --- arch/arm/common/edma.c | 255 +++++++++++++++++++++++++-- arch/arm/mach-davinci/board-da830-evm.c | 4 +- arch/arm/mach-davinci/board-da850-evm.c | 8 +- arch/arm/mach-davinci/board-dm646x-evm.c | 4 +- arch/arm/mach-davinci/board-omapl138-hawk.c | 8 +- arch/arm/mach-davinci/devices-da8xx.c | 8 +- arch/arm/mach-davinci/devices-tnetv107x.c | 4 +- arch/arm/mach-davinci/dm355.c | 4 +- arch/arm/mach-davinci/dm365.c | 4 +- arch/arm/mach-davinci/dm644x.c | 4 +- arch/arm/mach-davinci/dm646x.c | 4 +- include/linux/platform_data/edma.h | 8 +- 12 files changed, 272 insertions(+), 43 deletions(-) diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c index a3d189d..6d2a590 100644 --- a/arch/arm/common/edma.c +++ b/arch/arm/common/edma.c @@ -24,6 +24,13 @@ #include #include #include +#include +#include +#include +#include +#include +#include +#include #include @@ -1366,31 +1373,237 @@ void edma_clear_event(unsigned channel) EXPORT_SYMBOL(edma_clear_event); /*-----------------------------------------------------------------------*/ +static int edma_of_read_u32_to_s8_array(const struct device_node *np, + const char *propname, s8 *out_values, + size_t sz) +{ + struct property *prop = of_find_property(np, propname, NULL); + const __be32 *val; + + if (!prop) + return -EINVAL; + if (!prop->value) + return -ENODATA; + if ((sz * sizeof(u32)) > prop->length) + return -EOVERFLOW; + + val = prop->value; + + while (sz--) + *out_values++ = (s8)(be32_to_cpup(val++) & 0xff); + + /* Terminate it */ + *out_values++ = -1; + *out_values++ = -1; + + return 0; +} + +static int edma_of_read_u32_to_s16_array(const struct device_node *np, + const char *propname, s16 *out_values, + size_t sz) +{ + struct property *prop = of_find_property(np, propname, NULL); + const __be32 *val; + + if (!prop) + return -EINVAL; + if (!prop->value) + return -ENODATA; + if ((sz * sizeof(u32)) > prop->length) + return -EOVERFLOW; + + val = prop->value; + + while (sz--) + *out_values++ = (s16)(be32_to_cpup(val++) & 0xffff); + + /* Terminate it */ + *out_values++ = -1; + *out_values++ = -1; + + return 0; +} + +static int edma_of_parse_dt(struct device *dev, + struct device_node *node, + struct edma_soc_info *pdata) +{ + int ret = 0; + u32 value; + struct property *prop; + size_t sz; + struct edma_rsv_info *rsv_info; + s16 (*rsv_chans)[2], (*rsv_slots)[2]; + s8 (*queue_tc_map)[2], (*queue_priority_map)[2]; + + ret = of_property_read_u32(node, "dma-channels", &value); + if (ret < 0) + return ret; + pdata->n_channel = value; + + ret = of_property_read_u32(node, "ti,edma-regions", &value); + if (ret < 0) + return ret; + pdata->n_region = value; + + ret = of_property_read_u32(node, "ti,edma-slots", &value); + if (ret < 0) + return ret; + pdata->n_slot = value; + + pdata->n_cc = 1; + /* This is unused */ + pdata->n_tc = 3; + + rsv_info = + devm_kzalloc(dev, sizeof(struct edma_rsv_info), GFP_KERNEL); + if (!rsv_info) + return -ENOMEM; + pdata->rsv = rsv_info; + + /* Build the reserved channel/slots arrays */ + prop = of_find_property(node, "ti,edma-reserved-channels", &sz); + if (prop) { + rsv_chans = devm_kzalloc(dev, + sz/sizeof(s16) + 2*sizeof(s16), + GFP_KERNEL); + if (!rsv_chans) + return -ENOMEM; + pdata->rsv->rsv_chans = rsv_chans; + + ret = edma_of_read_u32_to_s16_array(node, + "ti,edma-reserved-channels", + (s16 *)rsv_chans, + sz/sizeof(u32)); + if (ret < 0) + return ret; + } + + prop = of_find_property(node, "ti,edma-reserved-slots", &sz); + if (prop) { + rsv_slots = devm_kzalloc(dev, + sz/sizeof(s16) + 2*sizeof(s16), + GFP_KERNEL); + if (!rsv_slots) + return -ENOMEM; + pdata->rsv->rsv_slots = rsv_slots; + + ret = edma_of_read_u32_to_s16_array(node, + "ti,edma-reserved-slots", + (s16 *)rsv_slots, + sz/sizeof(u32)); + if (ret < 0) + return ret; + } + + prop = of_find_property(node, "ti,edma-queue-tc-map", &sz); + if (!prop) + return -EINVAL; + + queue_tc_map = devm_kzalloc(dev, + sz/sizeof(s8) + 2*sizeof(s8), + GFP_KERNEL); + if (!queue_tc_map) + return -ENOMEM; + pdata->queue_tc_mapping = queue_tc_map; + + ret = edma_of_read_u32_to_s8_array(node, + "ti,edma-queue-tc-map", + (s8 *)queue_tc_map, + sz/sizeof(u32)); + if (ret < 0) + return ret; + + prop = of_find_property(node, "ti,edma-queue-priority-map", &sz); + if (!prop) + return -EINVAL; + + queue_priority_map = devm_kzalloc(dev, + sz/sizeof(s8) + 2*sizeof(s8), + GFP_KERNEL); + if (!queue_priority_map) + return -ENOMEM; + pdata->queue_priority_mapping = queue_priority_map; + + ret = edma_of_read_u32_to_s8_array(node, + "ti,edma-queue-tc-map", + (s8 *)queue_priority_map, + sz/sizeof(u32)); + if (ret < 0) + return ret; + + ret = of_property_read_u32(node, "ti,edma-default-queue", &value); + if (ret < 0) + return ret; + pdata->default_queue = value; + + return ret; +} + +static struct of_dma_filter_info edma_filter_info = { + .filter_fn = edma_filter_fn, +}; static int __init edma_probe(struct platform_device *pdev) { struct edma_soc_info **info = pdev->dev.platform_data; - const s8 (*queue_priority_mapping)[2]; - const s8 (*queue_tc_mapping)[2]; + s8 (*queue_priority_mapping)[2]; + s8 (*queue_tc_mapping)[2]; int i, j, off, ln, found = 0; int status = -1; - const s16 (*rsv_chans)[2]; - const s16 (*rsv_slots)[2]; + s16 (*rsv_chans)[2]; + s16 (*rsv_slots)[2]; int irq[EDMA_MAX_CC] = {0, 0}; int err_irq[EDMA_MAX_CC] = {0, 0}; - struct resource *r[EDMA_MAX_CC] = {NULL}; + struct resource *r[EDMA_MAX_CC] = {NULL, NULL}; + struct resource res[EDMA_MAX_CC]; resource_size_t len[EDMA_MAX_CC]; char res_name[10]; char irq_name[10]; + struct device_node *node = pdev->dev.of_node; + struct device *dev = &pdev->dev; + struct edma_soc_info *pdata; + int ret; + + if (node) { + pdata = devm_kzalloc(dev, + sizeof(struct edma_soc_info), + GFP_KERNEL); + edma_of_parse_dt(dev, node, pdata); + info = &pdata; + dma_cap_set(DMA_SLAVE, edma_filter_info.dma_cap); + of_dma_controller_register(dev->of_node, + of_dma_simple_xlate, + &edma_filter_info); + pm_runtime_enable(dev); + ret = pm_runtime_get_sync(dev); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "pm_runtime_get_sync() failed\n"); + return ret; + } + } if (!info) return -ENODEV; for (j = 0; j < EDMA_MAX_CC; j++) { - sprintf(res_name, "edma_cc%d", j); - r[j] = platform_get_resource_byname(pdev, IORESOURCE_MEM, + if (!info[j]) { + if (!found) + return -ENODEV; + break; + } + if (node) { + ret = of_address_to_resource(node, j, &res[j]); + if (!IS_ERR_VALUE(ret)) + r[j] = &res[j]; + } else { + sprintf(res_name, "edma_cc%d", j); + r[j] = platform_get_resource_byname(pdev, + IORESOURCE_MEM, res_name); - if (!r[j] || !info[j]) { + } + if (!r[j]) { if (found) break; else @@ -1465,8 +1678,12 @@ static int __init edma_probe(struct platform_device *pdev) } } - sprintf(irq_name, "edma%d", j); - irq[j] = platform_get_irq_byname(pdev, irq_name); + if (node) + irq[j] = irq_of_parse_and_map(node, 0); + else { + sprintf(irq_name, "edma%d", j); + irq[j] = platform_get_irq_byname(pdev, irq_name); + } edma_cc[j]->irq_res_start = irq[j]; status = request_irq(irq[j], dma_irq_handler, 0, "edma", &pdev->dev); @@ -1476,8 +1693,12 @@ static int __init edma_probe(struct platform_device *pdev) goto fail; } - sprintf(irq_name, "edma%d_err", j); - err_irq[j] = platform_get_irq_byname(pdev, irq_name); + if (node) + err_irq[j] = irq_of_parse_and_map(node, 2); + else { + sprintf(irq_name, "edma%d_err", j); + err_irq[j] = platform_get_irq_byname(pdev, irq_name); + } edma_cc[j]->irq_res_end = err_irq[j]; status = request_irq(err_irq[j], dma_ccerr_handler, 0, "edma_error", &pdev->dev); @@ -1538,9 +1759,17 @@ fail1: return status; } +static const struct of_device_id edma_of_ids[] = { + { .compatible = "ti,edma3", }, + {} +}; static struct platform_driver edma_driver = { - .driver.name = "edma", + .driver = { + .name = "edma", + .of_match_table = edma_of_ids, + }, + .probe = edma_probe, }; static int __init edma_init(void) diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c index 95b5e10..ffcbec1 100644 --- a/arch/arm/mach-davinci/board-da830-evm.c +++ b/arch/arm/mach-davinci/board-da830-evm.c @@ -512,7 +512,7 @@ static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = { * example: Timer, GPIO, UART events etc) on da830/omap-l137 EVM, hence * they are being reserved for codecs on the DSP side. */ -static const s16 da830_dma_rsv_chans[][2] = { +static s16 da830_dma_rsv_chans[][2] = { /* (offset, number) */ { 8, 2}, {12, 2}, @@ -521,7 +521,7 @@ static const s16 da830_dma_rsv_chans[][2] = { {-1, -1} }; -static const s16 da830_dma_rsv_slots[][2] = { +static s16 da830_dma_rsv_slots[][2] = { /* (offset, number) */ { 8, 2}, {12, 2}, diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index 32ee3f8..f207965 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -1097,7 +1097,7 @@ device_initcall(da850_evm_config_emac); * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM, hence * they are being reserved for codecs on the DSP side. */ -static const s16 da850_dma0_rsv_chans[][2] = { +static s16 da850_dma0_rsv_chans[][2] = { /* (offset, number) */ { 8, 6}, {24, 4}, @@ -1105,7 +1105,7 @@ static const s16 da850_dma0_rsv_chans[][2] = { {-1, -1} }; -static const s16 da850_dma0_rsv_slots[][2] = { +static s16 da850_dma0_rsv_slots[][2] = { /* (offset, number) */ { 8, 6}, {24, 4}, @@ -1113,14 +1113,14 @@ static const s16 da850_dma0_rsv_slots[][2] = { {-1, -1} }; -static const s16 da850_dma1_rsv_chans[][2] = { +static s16 da850_dma1_rsv_chans[][2] = { /* (offset, number) */ { 0, 28}, {30, 2}, {-1, -1} }; -static const s16 da850_dma1_rsv_slots[][2] = { +static s16 da850_dma1_rsv_slots[][2] = { /* (offset, number) */ { 0, 28}, {30, 90}, diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c index 1dbf85b..6c5b814 100644 --- a/arch/arm/mach-davinci/board-dm646x-evm.c +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -764,7 +764,7 @@ static struct davinci_uart_config uart_config __initdata = { * example: Timer, GPIO, UART events etc) on dm646x, hence they are being * reserved for codecs on the DSP side. */ -static const s16 dm646x_dma_rsv_chans[][2] = { +static s16 dm646x_dma_rsv_chans[][2] = { /* (offset, number) */ { 0, 4}, {13, 3}, @@ -774,7 +774,7 @@ static const s16 dm646x_dma_rsv_chans[][2] = { {-1, -1} }; -static const s16 dm646x_dma_rsv_slots[][2] = { +static s16 dm646x_dma_rsv_slots[][2] = { /* (offset, number) */ { 0, 4}, {13, 3}, diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c index dc1208e..09c34f8 100644 --- a/arch/arm/mach-davinci/board-omapl138-hawk.c +++ b/arch/arm/mach-davinci/board-omapl138-hawk.c @@ -70,7 +70,7 @@ static __init void omapl138_hawk_config_emac(void) * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM/Hawkboard, * hence they are being reserved for codecs on the DSP side. */ -static const s16 da850_dma0_rsv_chans[][2] = { +static s16 da850_dma0_rsv_chans[][2] = { /* (offset, number) */ { 8, 6}, {24, 4}, @@ -78,7 +78,7 @@ static const s16 da850_dma0_rsv_chans[][2] = { {-1, -1} }; -static const s16 da850_dma0_rsv_slots[][2] = { +static s16 da850_dma0_rsv_slots[][2] = { /* (offset, number) */ { 8, 6}, {24, 4}, @@ -86,14 +86,14 @@ static const s16 da850_dma0_rsv_slots[][2] = { {-1, -1} }; -static const s16 da850_dma1_rsv_chans[][2] = { +static s16 da850_dma1_rsv_chans[][2] = { /* (offset, number) */ { 0, 28}, {30, 2}, {-1, -1} }; -static const s16 da850_dma1_rsv_slots[][2] = { +static s16 da850_dma1_rsv_slots[][2] = { /* (offset, number) */ { 0, 28}, {30, 90}, diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index bd2f72b..1f9c6ff 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -103,27 +103,27 @@ struct platform_device da8xx_serial_device = { }, }; -static const s8 da8xx_queue_tc_mapping[][2] = { +static s8 da8xx_queue_tc_mapping[][2] = { /* {event queue no, TC no} */ {0, 0}, {1, 1}, {-1, -1} }; -static const s8 da8xx_queue_priority_mapping[][2] = { +static s8 da8xx_queue_priority_mapping[][2] = { /* {event queue no, Priority} */ {0, 3}, {1, 7}, {-1, -1} }; -static const s8 da850_queue_tc_mapping[][2] = { +static s8 da850_queue_tc_mapping[][2] = { /* {event queue no, TC no} */ {0, 0}, {-1, -1} }; -static const s8 da850_queue_priority_mapping[][2] = { +static s8 da850_queue_priority_mapping[][2] = { /* {event queue no, Priority} */ {0, 3}, {-1, -1} diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c index 59efd7f..d2453c9 100644 --- a/arch/arm/mach-davinci/devices-tnetv107x.c +++ b/arch/arm/mach-davinci/devices-tnetv107x.c @@ -58,14 +58,14 @@ #define TNETV107X_DMACH_SDIO1_RX 28 #define TNETV107X_DMACH_SDIO1_TX 29 -static const s8 edma_tc_mapping[][2] = { +static s8 edma_tc_mapping[][2] = { /* event queue no TC no */ { 0, 0 }, { 1, 1 }, { -1, -1 } }; -static const s8 edma_priority_mapping[][2] = { +static s8 edma_priority_mapping[][2] = { /* event queue no Prio */ { 0, 3 }, { 1, 7 }, diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index b165c27..cdefef3 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -567,7 +567,7 @@ static u8 dm355_default_priorities[DAVINCI_N_AINTC_IRQ] = { /*----------------------------------------------------------------------*/ -static const s8 +static s8 queue_tc_mapping[][2] = { /* {event queue no, TC no} */ {0, 0}, @@ -575,7 +575,7 @@ queue_tc_mapping[][2] = { {-1, -1}, }; -static const s8 +static s8 queue_priority_mapping[][2] = { /* {event queue no, Priority} */ {0, 3}, diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index a611716..801e162 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -822,7 +822,7 @@ static u8 dm365_default_priorities[DAVINCI_N_AINTC_IRQ] = { }; /* Four Transfer Controllers on DM365 */ -static const s8 +static s8 dm365_queue_tc_mapping[][2] = { /* {event queue no, TC no} */ {0, 0}, @@ -832,7 +832,7 @@ dm365_queue_tc_mapping[][2] = { {-1, -1}, }; -static const s8 +static s8 dm365_queue_priority_mapping[][2] = { /* {event queue no, Priority} */ {0, 7}, diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c index 90f5639..4799fd9 100644 --- a/arch/arm/mach-davinci/dm644x.c +++ b/arch/arm/mach-davinci/dm644x.c @@ -497,7 +497,7 @@ static u8 dm644x_default_priorities[DAVINCI_N_AINTC_IRQ] = { /*----------------------------------------------------------------------*/ -static const s8 +static s8 queue_tc_mapping[][2] = { /* {event queue no, TC no} */ {0, 0}, @@ -505,7 +505,7 @@ queue_tc_mapping[][2] = { {-1, -1}, }; -static const s8 +static s8 queue_priority_mapping[][2] = { /* {event queue no, Priority} */ {0, 3}, diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index 08f9dab..b4a4da6 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -531,7 +531,7 @@ static u8 dm646x_default_priorities[DAVINCI_N_AINTC_IRQ] = { /*----------------------------------------------------------------------*/ /* Four Transfer Controllers on DM646x */ -static const s8 +static s8 dm646x_queue_tc_mapping[][2] = { /* {event queue no, TC no} */ {0, 0}, @@ -541,7 +541,7 @@ dm646x_queue_tc_mapping[][2] = { {-1, -1}, }; -static const s8 +static s8 dm646x_queue_priority_mapping[][2] = { /* {event queue no, Priority} */ {0, 4}, diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h index 7396f0b3..b20b586 100644 --- a/include/linux/platform_data/edma.h +++ b/include/linux/platform_data/edma.h @@ -168,8 +168,8 @@ void edma_resume(unsigned channel); struct edma_rsv_info { - const s16 (*rsv_chans)[2]; - const s16 (*rsv_slots)[2]; + s16 (*rsv_chans)[2]; + s16 (*rsv_slots)[2]; }; /* platform_data for EDMA driver */ @@ -191,8 +191,8 @@ struct edma_soc_info { /* Resource reservation for other cores */ struct edma_rsv_info *rsv; - const s8 (*queue_tc_mapping)[2]; - const s8 (*queue_priority_mapping)[2]; + s8 (*queue_tc_mapping)[2]; + s8 (*queue_priority_mapping)[2]; }; #endif