From patchwork Wed Jan 20 14:25:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12032513 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A77B2C433DB for ; Wed, 20 Jan 2021 14:29:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 78CB523329 for ; Wed, 20 Jan 2021 14:29:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733032AbhATO2c (ORCPT ); Wed, 20 Jan 2021 09:28:32 -0500 Received: from mail.kernel.org ([198.145.29.99]:39816 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390615AbhATO0e (ORCPT ); Wed, 20 Jan 2021 09:26:34 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id CF5E723356; Wed, 20 Jan 2021 14:25:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1611152753; bh=sO38z1Shp3k5WOS/9clK1Hp8i/KIhKld1wlsCdJDYdE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ky4FBAf3kefU5xWirwjLfPGtsxUllqUeZJVwtf+QQSsPRC8vwH9f6PEkoV41X5OwI eTU42O7f/dxQnUo4NwQ3Aoal8FFxSq+xPoKcy3bhIiY+NdDyqLzkRMgsB9gnC9/KrB Z/jtm3pM1HAJd23PRH0hvOLoAURVemQZ+AvHiNKlJ2MJTszwQfQSecr62wOuAI6X5i QIg+LSsPy9rzISom5HbiyTUgOMedGzb9MvCPj0Sq27SC/e+bXB9ZKJwyVSQS5Qgrpz wg76Id4vAjXKSc4lzphu5DVXpCgmymCpMDNYjTBNutQSlhOpcwx2aMe0UDELfRQSNt gMduUihmXQUcg== From: Arnd Bergmann To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, Sean Young Cc: Arnd Bergmann , Marc Gonzalez , Mans Rullgard Subject: [PATCH 1/2] media: rc: remove tango ir driver Date: Wed, 20 Jan 2021 15:25:41 +0100 Message-Id: <20210120142542.4100741-2-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210120142542.4100741-1-arnd@kernel.org> References: <20210120142542.4100741-1-arnd@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Arnd Bergmann The tango platform is getting removed, so the driver is no longer needed. Cc: Marc Gonzalez Cc: Mans Rullgard Signed-off-by: Arnd Bergmann Acked-by: Mans Rullgard --- drivers/media/rc/Kconfig | 10 -- drivers/media/rc/Makefile | 1 - drivers/media/rc/tango-ir.c | 267 ------------------------------------ 3 files changed, 278 deletions(-) delete mode 100644 drivers/media/rc/tango-ir.c diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig index 2c0ee2e5b446..39bc75cc1848 100644 --- a/drivers/media/rc/Kconfig +++ b/drivers/media/rc/Kconfig @@ -497,16 +497,6 @@ config IR_SIR To compile this driver as a module, choose M here: the module will be called sir-ir. -config IR_TANGO - tristate "Sigma Designs SMP86xx IR decoder" - depends on RC_CORE - depends on ARCH_TANGO || COMPILE_TEST - help - Adds support for the HW IR decoder embedded on Sigma Designs - Tango-based systems (SMP86xx, SMP87xx). - The HW decoder supports NEC, RC-5, RC-6 IR protocols. - When compiled as a module, look for tango-ir. - config RC_XBOX_DVD tristate "Xbox DVD Movie Playback Kit" depends on RC_CORE diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile index 5bb2932ab119..f46a72071a7b 100644 --- a/drivers/media/rc/Makefile +++ b/drivers/media/rc/Makefile @@ -48,6 +48,5 @@ obj-$(CONFIG_IR_SERIAL) += serial_ir.o obj-$(CONFIG_IR_SIR) += sir_ir.o obj-$(CONFIG_IR_MTK) += mtk-cir.o obj-$(CONFIG_IR_ZX) += zx-irdec.o -obj-$(CONFIG_IR_TANGO) += tango-ir.o obj-$(CONFIG_RC_XBOX_DVD) += xbox_remote.o obj-$(CONFIG_IR_TOY) += ir_toy.o diff --git a/drivers/media/rc/tango-ir.c b/drivers/media/rc/tango-ir.c deleted file mode 100644 index b8eb5bc4d9be..000000000000 --- a/drivers/media/rc/tango-ir.c +++ /dev/null @@ -1,267 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Copyright (C) 2015 Mans Rullgard - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#define DRIVER_NAME "tango-ir" - -#define IR_NEC_CTRL 0x00 -#define IR_NEC_DATA 0x04 -#define IR_CTRL 0x08 -#define IR_RC5_CLK_DIV 0x0c -#define IR_RC5_DATA 0x10 -#define IR_INT 0x14 - -#define NEC_TIME_BASE 560 -#define RC5_TIME_BASE 1778 - -#define RC6_CTRL 0x00 -#define RC6_CLKDIV 0x04 -#define RC6_DATA0 0x08 -#define RC6_DATA1 0x0c -#define RC6_DATA2 0x10 -#define RC6_DATA3 0x14 -#define RC6_DATA4 0x18 - -#define RC6_CARRIER 36000 -#define RC6_TIME_BASE 16 - -#define NEC_CAP(n) ((n) << 24) -#define GPIO_SEL(n) ((n) << 16) -#define DISABLE_NEC (BIT(4) | BIT(8)) -#define ENABLE_RC5 (BIT(0) | BIT(9)) -#define ENABLE_RC6 (BIT(0) | BIT(7)) -#define ACK_IR_INT (BIT(0) | BIT(1)) -#define ACK_RC6_INT (BIT(31)) - -#define NEC_ANY (RC_PROTO_BIT_NEC | RC_PROTO_BIT_NECX | RC_PROTO_BIT_NEC32) - -struct tango_ir { - void __iomem *rc5_base; - void __iomem *rc6_base; - struct rc_dev *rc; - struct clk *clk; -}; - -static void tango_ir_handle_nec(struct tango_ir *ir) -{ - u32 v, code; - enum rc_proto proto; - - v = readl_relaxed(ir->rc5_base + IR_NEC_DATA); - if (!v) { - rc_repeat(ir->rc); - return; - } - - code = ir_nec_bytes_to_scancode(v, v >> 8, v >> 16, v >> 24, &proto); - rc_keydown(ir->rc, proto, code, 0); -} - -static void tango_ir_handle_rc5(struct tango_ir *ir) -{ - u32 data, field, toggle, addr, cmd, code; - - data = readl_relaxed(ir->rc5_base + IR_RC5_DATA); - if (data & BIT(31)) - return; - - field = data >> 12 & 1; - toggle = data >> 11 & 1; - addr = data >> 6 & 0x1f; - cmd = (data & 0x3f) | (field ^ 1) << 6; - - code = RC_SCANCODE_RC5(addr, cmd); - rc_keydown(ir->rc, RC_PROTO_RC5, code, toggle); -} - -static void tango_ir_handle_rc6(struct tango_ir *ir) -{ - u32 data0, data1, toggle, mode, addr, cmd, code; - - data0 = readl_relaxed(ir->rc6_base + RC6_DATA0); - data1 = readl_relaxed(ir->rc6_base + RC6_DATA1); - - mode = data0 >> 1 & 7; - if (mode != 0) - return; - - toggle = data0 & 1; - addr = data0 >> 16; - cmd = data1; - - code = RC_SCANCODE_RC6_0(addr, cmd); - rc_keydown(ir->rc, RC_PROTO_RC6_0, code, toggle); -} - -static irqreturn_t tango_ir_irq(int irq, void *dev_id) -{ - struct tango_ir *ir = dev_id; - unsigned int rc5_stat; - unsigned int rc6_stat; - - rc5_stat = readl_relaxed(ir->rc5_base + IR_INT); - writel_relaxed(rc5_stat, ir->rc5_base + IR_INT); - - rc6_stat = readl_relaxed(ir->rc6_base + RC6_CTRL); - writel_relaxed(rc6_stat, ir->rc6_base + RC6_CTRL); - - if (!(rc5_stat & 3) && !(rc6_stat & BIT(31))) - return IRQ_NONE; - - if (rc5_stat & BIT(0)) - tango_ir_handle_rc5(ir); - - if (rc5_stat & BIT(1)) - tango_ir_handle_nec(ir); - - if (rc6_stat & BIT(31)) - tango_ir_handle_rc6(ir); - - return IRQ_HANDLED; -} - -static int tango_change_protocol(struct rc_dev *dev, u64 *rc_type) -{ - struct tango_ir *ir = dev->priv; - u32 rc5_ctrl = DISABLE_NEC; - u32 rc6_ctrl = 0; - - if (*rc_type & NEC_ANY) - rc5_ctrl = 0; - - if (*rc_type & RC_PROTO_BIT_RC5) - rc5_ctrl |= ENABLE_RC5; - - if (*rc_type & RC_PROTO_BIT_RC6_0) - rc6_ctrl = ENABLE_RC6; - - writel_relaxed(rc5_ctrl, ir->rc5_base + IR_CTRL); - writel_relaxed(rc6_ctrl, ir->rc6_base + RC6_CTRL); - - return 0; -} - -static int tango_ir_probe(struct platform_device *pdev) -{ - const char *map_name = RC_MAP_TANGO; - struct device *dev = &pdev->dev; - struct rc_dev *rc; - struct tango_ir *ir; - u64 clkrate, clkdiv; - int irq, err; - u32 val; - - irq = platform_get_irq(pdev, 0); - if (irq <= 0) - return -EINVAL; - - ir = devm_kzalloc(dev, sizeof(*ir), GFP_KERNEL); - if (!ir) - return -ENOMEM; - - ir->rc5_base = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(ir->rc5_base)) - return PTR_ERR(ir->rc5_base); - - ir->rc6_base = devm_platform_ioremap_resource(pdev, 1); - if (IS_ERR(ir->rc6_base)) - return PTR_ERR(ir->rc6_base); - - ir->clk = devm_clk_get(dev, NULL); - if (IS_ERR(ir->clk)) - return PTR_ERR(ir->clk); - - rc = devm_rc_allocate_device(dev, RC_DRIVER_SCANCODE); - if (!rc) - return -ENOMEM; - - of_property_read_string(dev->of_node, "linux,rc-map-name", &map_name); - - rc->device_name = DRIVER_NAME; - rc->driver_name = DRIVER_NAME; - rc->input_phys = DRIVER_NAME "/input0"; - rc->map_name = map_name; - rc->allowed_protocols = NEC_ANY | RC_PROTO_BIT_RC5 | RC_PROTO_BIT_RC6_0; - rc->change_protocol = tango_change_protocol; - rc->priv = ir; - ir->rc = rc; - - err = clk_prepare_enable(ir->clk); - if (err) - return err; - - clkrate = clk_get_rate(ir->clk); - - clkdiv = clkrate * NEC_TIME_BASE; - do_div(clkdiv, 1000000); - - val = NEC_CAP(31) | GPIO_SEL(12) | clkdiv; - writel_relaxed(val, ir->rc5_base + IR_NEC_CTRL); - - clkdiv = clkrate * RC5_TIME_BASE; - do_div(clkdiv, 1000000); - - writel_relaxed(DISABLE_NEC, ir->rc5_base + IR_CTRL); - writel_relaxed(clkdiv, ir->rc5_base + IR_RC5_CLK_DIV); - writel_relaxed(ACK_IR_INT, ir->rc5_base + IR_INT); - - clkdiv = clkrate * RC6_TIME_BASE; - do_div(clkdiv, RC6_CARRIER); - - writel_relaxed(ACK_RC6_INT, ir->rc6_base + RC6_CTRL); - writel_relaxed((clkdiv >> 2) << 18 | clkdiv, ir->rc6_base + RC6_CLKDIV); - - err = devm_request_irq(dev, irq, tango_ir_irq, IRQF_SHARED, - dev_name(dev), ir); - if (err) - goto err_clk; - - err = devm_rc_register_device(dev, rc); - if (err) - goto err_clk; - - platform_set_drvdata(pdev, ir); - return 0; - -err_clk: - clk_disable_unprepare(ir->clk); - return err; -} - -static int tango_ir_remove(struct platform_device *pdev) -{ - struct tango_ir *ir = platform_get_drvdata(pdev); - - clk_disable_unprepare(ir->clk); - return 0; -} - -static const struct of_device_id tango_ir_dt_ids[] = { - { .compatible = "sigma,smp8642-ir" }, - { } -}; -MODULE_DEVICE_TABLE(of, tango_ir_dt_ids); - -static struct platform_driver tango_ir_driver = { - .probe = tango_ir_probe, - .remove = tango_ir_remove, - .driver = { - .name = DRIVER_NAME, - .of_match_table = tango_ir_dt_ids, - }, -}; -module_platform_driver(tango_ir_driver); - -MODULE_DESCRIPTION("SMP86xx IR decoder driver"); -MODULE_AUTHOR("Mans Rullgard "); -MODULE_LICENSE("GPL");