From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jolly Shah Subject: [PATCH v9 08/10] firmware: xilinx: Add debugfs for query data API Date: Wed, 20 Jun 2018 10:40:33 -0700 Message-ID: <1529516435-7315-9-git-send-email-jollys@xilinx.com> References: <1529516435-7315-1-git-send-email-jollys@xilinx.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1529516435-7315-1-git-send-email-jollys@xilinx.com> Sender: linux-kernel-owner@vger.kernel.org To: ard.biesheuvel@linaro.org, mingo@kernel.org, gregkh@linuxfoundation.org, matt@codeblueprint.co.uk, sudeep.holla@arm.com, hkallweit1@gmail.com, keescook@chromium.org, dmitry.torokhov@gmail.com, mturquette@baylibre.com, sboyd@codeaurora.org, michal.simek@xilinx.com, robh+dt@kernel.org, mark.rutland@arm.com, linux-clk@vger.kernel.org Cc: rajanv@xilinx.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Jolly Shah List-Id: devicetree@vger.kernel.org From: Rajan Vaja Add debugfs file to query platform specific data from firmware using debugfs interface. Signed-off-by: Rajan Vaja Signed-off-by: Jolly Shah --- drivers/firmware/xilinx/zynqmp-debug.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp-debug.c b/drivers/firmware/xilinx/zynqmp-debug.c index 148dbff..1cb69f7 100644 --- a/drivers/firmware/xilinx/zynqmp-debug.c +++ b/drivers/firmware/xilinx/zynqmp-debug.c @@ -33,6 +33,7 @@ static char debugfs_buf[PAGE_SIZE]; static struct pm_api_info pm_api_list[] = { PM_API(PM_GET_API_VERSION), PM_API(PM_IOCTL), + PM_API(PM_QUERY_DATA), }; /** @@ -105,6 +106,32 @@ static int process_api_request(u32 pm_id, u64 *pm_api_arg, u32 *pm_api_ret) sprintf(debugfs_buf, "IOCTL return value: %u\n", pm_api_ret[1]); break; + case PM_QUERY_DATA: + { + struct zynqmp_pm_query_data qdata = {0}; + + qdata.qid = pm_api_arg[0]; + qdata.arg1 = pm_api_arg[1]; + qdata.arg2 = pm_api_arg[2]; + qdata.arg3 = pm_api_arg[3]; + + ret = eemi_ops->query_data(qdata, pm_api_ret); + if (ret) + break; + + if (qdata.qid == PM_QID_CLOCK_GET_NAME) + sprintf(debugfs_buf, "Clock name = %s\n", + (char *)pm_api_ret); + else if (qdata.qid == PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS) + sprintf(debugfs_buf, "Multiplier = %d, Divider = %d\n", + pm_api_ret[1], pm_api_ret[2]); + else + sprintf(debugfs_buf, + "data[0] = 0x%08x\ndata[1] = 0x%08x\n data[2] = 0x%08x\ndata[3] = 0x%08x\n", + pm_api_ret[0], pm_api_ret[1], + pm_api_ret[2], pm_api_ret[3]); + break; + } default: sprintf(debugfs_buf, "Unsupported PM-API request\n"); ret = -EINVAL; -- 2.7.4