From patchwork Sat May 27 16:44:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Artur Rojek X-Patchwork-Id: 13257695 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A6058C77B73 for ; Sat, 27 May 2023 16:45:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230038AbjE0Qp2 (ORCPT ); Sat, 27 May 2023 12:45:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229649AbjE0Qp0 (ORCPT ); Sat, 27 May 2023 12:45:26 -0400 Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::227]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6ABAED8; Sat, 27 May 2023 09:45:18 -0700 (PDT) X-GND-Sasl: contact@artur-rojek.eu X-GND-Sasl: contact@artur-rojek.eu X-GND-Sasl: contact@artur-rojek.eu X-GND-Sasl: contact@artur-rojek.eu X-GND-Sasl: contact@artur-rojek.eu X-GND-Sasl: contact@artur-rojek.eu X-GND-Sasl: contact@artur-rojek.eu X-GND-Sasl: contact@artur-rojek.eu Received: by mail.gandi.net (Postfix) with ESMTPSA id C5A4A20003; Sat, 27 May 2023 16:45:15 +0000 (UTC) From: Artur Rojek To: Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , Geert Uytterhoeven Cc: Rafael Ignacio Zurita , linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, Artur Rojek Subject: [PATCH v2 3/3] sh: dma: Correct the number of DMA channels in SH7709 Date: Sat, 27 May 2023 18:44:52 +0200 Message-Id: <20230527164452.64797-4-contact@artur-rojek.eu> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230527164452.64797-1-contact@artur-rojek.eu> References: <20230527164452.64797-1-contact@artur-rojek.eu> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org According to the hardware manual [1], the DMAC found in SH7709 features only 4 channels. While at it, also sort the existing targets and clarify that NR_ONCHIP_DMA_CHANNELS must be a multiply of two. [1] https://www.renesas.com/us/en/document/mah/sh7709s-group-hardware-manual (p. 373) Signed-off-by: Artur Rojek Reviewed-by: Geert Uytterhoeven Reviewed-by: John Paul Adrian Glaubitz --- v2: - sort existing targets - clarify that the value must be a multiply of two arch/sh/drivers/dma/Kconfig | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig index 7d54f284ce10..382fbb189fcf 100644 --- a/arch/sh/drivers/dma/Kconfig +++ b/arch/sh/drivers/dma/Kconfig @@ -28,17 +28,19 @@ config SH_DMA_API config NR_ONCHIP_DMA_CHANNELS int depends on SH_DMA - default "4" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7751 || \ - CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7091 + default "4" if CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7750 || \ + CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7751 || \ + CPU_SUBTYPE_SH7091 default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || \ CPU_SUBTYPE_SH7760 - default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7780 || \ - CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7724 + default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7724 || \ + CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 default "6" help This allows you to specify the number of channels that the on-chip - DMAC supports. This will be 4 for SH7750/SH7751/Sh7750S/SH7091 and 8 for the - SH7750R/SH7751R/SH7760, 12 for the SH7723/SH7780/SH7785/SH7724, default is 6. + DMAC supports. This will be 4 for SH7709/SH7750/SH7750S/SH7751/SH7091, + 8 for SH7750R/SH7751R/SH7760, and 12 for SH7723/SH7724/SH7780/SH7785. + Default is 6. Must be an even number. config SH_DMABRG bool "SH7760 DMABRG support"