From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joachim Eastwood Subject: [PATCH v2 0/2] CREG clk driver for NXP LPC18xx family Date: Sat, 20 Feb 2016 19:53:35 +0100 Message-ID: <1455994417-4471-1-git-send-email-manabian@gmail.com> Return-path: Sender: linux-clk-owner@vger.kernel.org To: mturquette@baylibre.com, sboyd@codeaurora.org Cc: Joachim Eastwood , linux-clk@vger.kernel.org, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org This patch set adds a clk driver for the low power clocks found in the CREG block on lpc18xx. CREG is a collection of miscellaneous configuration registers that can be accessed through a syscon regmap interface. The clk driver makes it possible to setup and enabled these two clocks. This need to support peripherals like the internal RTC on the lpc18xx platform. Mike/Stephen is this what you envisioned? It seems to work, but I currently don't have a setup that requires the 32khz clock early so that part isn't really tested. The probe deferral seems to work for the RTC: [ 3.386861] lpc24xx-rtc 40046000.rtc: error getting rtc clock [ 6.737615] lpc24xx-rtc 40046000.rtc: rtc core: registered lpc24xx-rtc as rtc0 Changes since v1: - Split driver with one early init and one platform driver probe. Based on v4.5-rc1. Joachim Eastwood (2): clk: add lpc18xx creg clk driver doc: dt: add documentation for lpc1850-creg-clk driver .../devicetree/bindings/clock/lpc1850-creg-clk.txt | 52 ++++++ drivers/clk/nxp/Makefile | 1 + drivers/clk/nxp/clk-lpc18xx-creg.c | 205 +++++++++++++++++++++ 3 files changed, 258 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt create mode 100644 drivers/clk/nxp/clk-lpc18xx-creg.c -- 1.8.0