From patchwork Tue Mar 10 15:25:47 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Stoakes X-Patchwork-Id: 5978511 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 9DC12BF440 for ; Tue, 10 Mar 2015 15:26:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A112C20222 for ; Tue, 10 Mar 2015 15:26:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9124E20149 for ; Tue, 10 Mar 2015 15:26:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932072AbbCJP00 (ORCPT ); Tue, 10 Mar 2015 11:26:26 -0400 Received: from mail-wi0-f176.google.com ([209.85.212.176]:43848 "EHLO mail-wi0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753632AbbCJP0X (ORCPT ); Tue, 10 Mar 2015 11:26:23 -0400 Received: by widem10 with SMTP id em10so3973459wid.2; Tue, 10 Mar 2015 08:26:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=Zhwzq7gn6rMdMgnOlftF9IEZUvxnsPoag6X8nySqVdw=; b=TgstvkWjCchjj4r3zwY7zkWI1mluPQs5UOPC8ou5pQennWuVAk4aYB9SorKEaR1JzW HFnvPPVv2ufWG9GlveHGEVfurIjcNI/yaquN+K4NzpwaMZBJYMwXEG9SNf5n+ueCoR8Y NIIAfSQ1jf5EgzcqB/vHqnkKdQU1h9sG5ISWszMyirdseH1KTMvf52CA+xlAJUjAQRdn LIXXOTT9IzXf/YNd6smaBpaFHqM+m2XztU/OH3+pwPrCBm+/K+wk/gs75hPrhBQSlgiM ifevAWsI6yz96pvkwoLfPZxmFTDMluP7oeCXMfqiF39AygAdyF78uBSzyE2/zBfpOgOI Vkuw== X-Received: by 10.194.21.137 with SMTP id v9mr68230600wje.140.1426001182017; Tue, 10 Mar 2015 08:26:22 -0700 (PDT) Received: from localhost (cpc71925-newt30-2-0-cust4.19-3.cable.virginm.net. [82.35.188.5]) by mx.google.com with ESMTPSA id s19sm4467651wik.18.2015.03.10.08.26.20 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 10 Mar 2015 08:26:20 -0700 (PDT) From: Lorenzo Stoakes To: sudipm.mukherjee@gmail.com, teddy.wang@siliconmotion.com, gregkh@linuxfoundation.org Cc: linux-fbdev@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, Lorenzo Stoakes Subject: [PATCH v3] staging: sm750fb: Cleanup the type of mmio750 Date: Tue, 10 Mar 2015 15:25:47 +0000 Message-Id: <1426001147-17332-1-git-send-email-lstoakes@gmail.com> X-Mailer: git-send-email 2.3.2 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch assigns the more appropriate void* type to the mmio750 variable eliminating an unnecessary volatile qualifier in the process. Additionally it updates parameter types as necessary where those parameters interact with mmio750, removes unnecessary casts and updates the type of the lynx_share->pvReg field which is passed to the ddk750_set_mmio method. As a consequence, this patch fixes the following sparse warning:- drivers/staging/sm750fb/ddk750_help.c:12:17: warning: incorrect type in assignment (different address spaces) Signed-off-by: Lorenzo Stoakes --- drivers/staging/sm750fb/ddk750_chip.h | 4 +++- drivers/staging/sm750fb/ddk750_help.c | 4 ++-- drivers/staging/sm750fb/ddk750_help.h | 10 +++++----- drivers/staging/sm750fb/sm750.h | 2 +- 4 files changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/staging/sm750fb/ddk750_chip.h b/drivers/staging/sm750fb/ddk750_chip.h index d761b72..04cb0d5 100644 --- a/drivers/staging/sm750fb/ddk750_chip.h +++ b/drivers/staging/sm750fb/ddk750_chip.h @@ -5,6 +5,8 @@ #define SM750LE_REVISION_ID ((unsigned char)0xfe) #endif +#include + /* This is all the chips recognized by this library */ typedef enum _logical_chip_type_t { @@ -72,7 +74,7 @@ logical_chip_type_t getChipType(void); unsigned int calcPllValue(unsigned int request,pll_value_t *pll); unsigned int calcPllValue2(unsigned int,pll_value_t *); unsigned int formatPllReg(pll_value_t *pPLL); -void ddk750_set_mmio(volatile unsigned char *,unsigned short,char); +void ddk750_set_mmio(void __iomem *,unsigned short,char); unsigned int ddk750_getVMSize(void); int ddk750_initHw(initchip_param_t *); unsigned int getPllValue(clock_type_t clockType, pll_value_t *pPLL); diff --git a/drivers/staging/sm750fb/ddk750_help.c b/drivers/staging/sm750fb/ddk750_help.c index cc00d2b..c68ff3b 100644 --- a/drivers/staging/sm750fb/ddk750_help.c +++ b/drivers/staging/sm750fb/ddk750_help.c @@ -2,12 +2,12 @@ //#include "ddk750_chip.h" #include "ddk750_help.h" -volatile unsigned char __iomem * mmio750 = NULL; +void __iomem * mmio750 = NULL; char revId750 = 0; unsigned short devId750 = 0; /* after driver mapped io registers, use this function first */ -void ddk750_set_mmio(volatile unsigned char * addr,unsigned short devId,char revId) +void ddk750_set_mmio(void __iomem * addr,unsigned short devId,char revId) { mmio750 = addr; devId750 = devId; diff --git a/drivers/staging/sm750fb/ddk750_help.h b/drivers/staging/sm750fb/ddk750_help.h index 4fc93b5..07c8264 100644 --- a/drivers/staging/sm750fb/ddk750_help.h +++ b/drivers/staging/sm750fb/ddk750_help.h @@ -12,14 +12,14 @@ #if 0 /* if 718 big endian turned on,be aware that don't use this driver for general use,only for ppc big-endian */ #warning "big endian on target cpu and enable nature big endian support of 718 capability !" -#define PEEK32(addr) __raw_readl((void __iomem *)(mmio750)+(addr)) -#define POKE32(addr,data) __raw_writel((data),(void __iomem*)(mmio750)+(addr)) +#define PEEK32(addr) __raw_readl(mmio750 + addr) +#define POKE32(addr,data) __raw_writel(data, mmio750 + addr) #else /* software control endianess */ -#define PEEK32(addr) readl((addr)+mmio750) -#define POKE32(addr,data) writel((data),(addr)+mmio750) +#define PEEK32(addr) readl(addr + mmio750) +#define POKE32(addr,data) writel(data, addr + mmio750) #endif -extern volatile unsigned char __iomem * mmio750; +extern void __iomem * mmio750; extern char revId750; extern unsigned short devId750; #else diff --git a/drivers/staging/sm750fb/sm750.h b/drivers/staging/sm750fb/sm750.h index d39968c..5361116 100644 --- a/drivers/staging/sm750fb/sm750.h +++ b/drivers/staging/sm750fb/sm750.h @@ -63,7 +63,7 @@ struct lynx_share{ unsigned long vidreg_start; __u32 vidmem_size; __u32 vidreg_size; - volatile unsigned char __iomem * pvReg; + void __iomem * pvReg; unsigned char __iomem * pvMem; /* locks*/ spinlock_t slock;