From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753729AbcLNAOA (ORCPT ); Tue, 13 Dec 2016 19:14:00 -0500 Received: from Galois.linutronix.de ([146.0.238.70]:42913 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753582AbcLNANy (ORCPT ); Tue, 13 Dec 2016 19:13:54 -0500 From: Holger Dengler To: Lee Jones , Arnd Bergmann , Greg Kroah-Hartman , Vinod Koul Cc: linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, Thomas Gleixner , Sebastian Siewior , Juergen Bubeck , Peter Mahler , Holger Dengler , Benedikt Spranger Subject: [PATCH 03/12] mfd: flexcard: add posix clock mfd-cell Date: Wed, 14 Dec 2016 01:11:44 +0100 Message-Id: <1481674313-30378-4-git-send-email-dengler@linutronix.de> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1481674313-30378-1-git-send-email-dengler@linutronix.de> References: <1481674313-30378-1-git-send-email-dengler@linutronix.de> X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The Flexcard offers a Flexray network synchronized counter with a selectable resolution of 1us, 100ns or 10ns. Add an appropriate MFD-cell to use the counter. Signed-off-by: Benedikt Spranger Signed-off-by: Holger Dengler cc: Lee Jones --- drivers/mfd/flexcard_core.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/drivers/mfd/flexcard_core.c b/drivers/mfd/flexcard_core.c index 2ee9089..73eb726 100644 --- a/drivers/mfd/flexcard_core.c +++ b/drivers/mfd/flexcard_core.c @@ -28,11 +28,32 @@ #define FLEXCARD_CONF_START 0x000 #define FLEXCARD_CONF_SIZE 0x13F +#define FLEXCARD_CLKRST_START 0x144 +#define FLEXCARD_CLKRST_SIZE 0x3 #define FLEXCARD_NF_START 0x170 #define FLEXCARD_NF_SIZE 0x7 +#define FLEXCARD_CLK_START 0x700 +#define FLEXCARD_CLK_SIZE 0x13 static DEFINE_IDA(flexcard_ida); +static struct resource flexcard_clk_res[] = { + DEFINE_RES_MEM_NAMED(FLEXCARD_CLK_START, + FLEXCARD_CLK_SIZE, + "flexcard-clock"), + DEFINE_RES_MEM_NAMED(FLEXCARD_CLKRST_START, + FLEXCARD_CLKRST_SIZE, + "flexcard-clock-reset"), +}; + +static struct mfd_cell flexcard_clk_dev[] = { + { + .name = "flexcard-clock", + .num_resources = ARRAY_SIZE(flexcard_clk_res), + .resources = flexcard_clk_res, + }, +}; + static struct resource flexcard_misc_res[] = { DEFINE_RES_MEM_NAMED(FLEXCARD_CONF_START, FLEXCARD_CONF_SIZE, @@ -55,6 +76,19 @@ enum flexcard_cell_id { FLEXCARD_CELL_FLEXRAY, }; +static int flexcard_clk_setup(struct flexcard_device *priv) +{ + struct pci_dev *pdev = priv->pdev; + + flexcard_clk_dev[0].id = priv->cardnr; + flexcard_clk_res[0].parent = &pdev->resource[0]; + flexcard_clk_res[1].parent = &pdev->resource[0]; + + return mfd_add_devices(&pdev->dev, 0, flexcard_clk_dev, + ARRAY_SIZE(flexcard_clk_dev), + &pdev->resource[0], 0, NULL); +} + static int flexcard_misc_setup(struct flexcard_device *priv) { struct pci_dev *pdev = priv->pdev; @@ -220,6 +254,12 @@ static int flexcard_probe(struct pci_dev *pdev, goto out_mfd_dev_remove; } + ret = flexcard_clk_setup(priv); + if (ret) { + dev_err(&pdev->dev, "unable to register clksrc: %d\n", ret); + goto out_mfd_dev_remove; + } + dev_info(&pdev->dev, "HW %02x.%02x.%02x FW %02x.%02x.%02x\n", hw_ver.ver.maj, hw_ver.ver.min, hw_ver.ver.dev, fw_ver.ver.maj, fw_ver.ver.min, fw_ver.ver.dev); -- 2.1.4